First,
If you really want the new CPU, then sell the old board and old CPU. Buy a new board and CPU. Not as big a deal as its made out to be. You can often sell the old board on eBay for the basis price, there is that much demand for working mint old motherboards. If you keep the motherboard in mint condition and the box, manual, disks, antistatic bag, IO panel, the motherboards do not lose value. If the new motherboards do not support the old CPUs, then it will ensure the old motherboards retain value.
Second,
CPUs gain like 5 to 10% performance at the most between generations. The idea of upgrading a CPU each and every generation (all while staying on the same motherboard) is an insane waste of money. Go out a few years before upgrading CPUs, and then at that future time, it makes sense to get a new motherboard, newest generation of ram, newest generation of SSD storage, and so forth.
Third,
There is a bit of irony that one of the more annoying to read AMD fanboy talking points was the supposed upgrade-ability of AM4 motherboards for every Ryzen generation going forward, and yet we find it had roughly the same longevity as Intel.
Haha, I read this as I looked down at my 3900X/X370 rig. Honestly, I wasn't expecting it to work. I considered it good luck. I was happy that I was able to do that. I got that board open box for $120, with good features and solid VRM's. Came with everything and I still have it all.
But at the very same time, I was saying that if it didn't work, I'd just swap it for an X570. The old board is still pristine, I could've gotten enough to make the X570 pretty affordable. To me, it's one of those things where if you can keep a mobo through an upgrade, that's great, but if not, what am I really gonna do about that but try to figure out the best way to proceed, if at all? So I agree, not really that bad to swap mobos. On principle I think we swap them more than should be necessary, but if you do it right, the only part that hurts is re-routing power cables.
Never thought this board would see 3 gens of Ryzen in it, but it did! Not a bad deal, for me. I paid $120 for a board that took all of these chips, from Zen to Zen 2. Feel like asking for more is kinda pointless. Like... shit man that's pretty good if you ask me!
That said, I might have a different mindset than some. I'm not really hardcore at all, but I go through parts just for fun - I like to be working inside cases, seeing what things can do for myself, so for me buying and replacing them is just par for the course. I'm not gonna sit here and act like all I want is a good computer. I'd be a fool to spend literal thousands just to do that. I just take em, use em, and flip em.
I think some people just aren't honest with themselves about that, and let certain things trickle in too much. They know they probably don't need all of the upgrades... they want them but can't afford them and feel like they're being blocked out. And on principal it is annoying when you can't combine things for no obvious reasons. Now you gotta buy more parts. But I might ask why you're looking at buying new parts for a year-old machine. Does it really need the upgrade? If not, cool. I make pointless upgrades just because I want it and I can find a way to make it happen. But to me that's always gonna cost some serious money. I've done builds on the side to pay for parts, or sometimes I just save up for a while. When an unused part I have is good for the build I'm doing, I get to cut them a deal and recoup my entry fee. It's a niche hobby. Most people don't want/care about this shit like we might. I'm trying to remember a time when it was ever really cheap or practical to be always working on your PC. The only way it was ever cheap was to shop smart, trade, buy used, and when you're done run it till it's obsolete. That's not new. It's an expensive hobby. There's always a game to play, getting into this stuff. The ones who stick around know what I'm saying.
So I get the frustration, but at the same time feel like if you want to REALLY go after AMD for stuff like this, you have to point the finger at everyone in the game for like the past 2 decades. To criticize it and want it to be better, knowing it probably can be, I can get behind. The straight outrage, not so much. That stuff is for the kids. Like any other company, AMD does some good and some bad. I've supported them for the past couple of years because I really do like their products. If I feel like that's not the case anymore, I'm not sticking around complaining. I'm just going to find another way to get what I want, or hang on to my money until there's more. To me, it's all extravagant. None of it is really needed. I just want it. If you want me to list the things I want but can't have, it'll be the longest post I ever write.
Kinda getting OT, but I think the climate is just different. This hobby, like most other tech hobbies, has been inundated with people ages 19-23ish, who previously would've had a much harder time engaging with it. Not really a dig on them or anything, but their outlook might be missing certain things that those with more experience (in life, even) are past the point of even looking at. Not to mention their finances and how they make things work for them are different. Engaging with PC building is different for them, because of the point they're at in their lives. This is the crowd you see most on places like Reddit and Youtube, even forums (though it seems like forums are more geared to NOT be that - the last bastion of the old ways.) They may say a lot of things that people who've been in it, who've had the experience and dealt with things they wouldn't know about, would look at and say "What is this guy talking about??"
Obviously can't say that about everyone. I think there are people here in that demographic who see this as well as the rest.
Anybody know what I mean here? I'm trying not to be mean about it. I think new people are good. But a lot of the popular opinions out in many tech communities are coming from greener people, and those people are sustaining opportunities for information outlets and people making hardware. What is important to them is going to be talked about more, even if others who have been around more don't care as much. They are a new driving force, talking A LOT about gear, generating interest and creating markets.
They all market a lot more towards that crowd, and the media favors them more, too. Same thing has happened in the audiophile world. Lots of younger dudes out there with less disposable income, soaking up the media that drew them in and basing opinions around that more than anything else. Then they gather and talk and it's all made that much more real. But at the end of the day it's chatter from those who for the most part know only what they have read. They want flashy stuff that has it all, measures perfect, and doesn't cost $10000... in sphere where for a long time that wasn't done much at all. Companies do try to sell them a lot of stuff, but most of that stuff still is not what it's made out to be, and somehow everyone is always surprised. PCs aren't that different IME. Same attitude floating around as the new headphone dorks. I say just move on and don't worry too much about it, because those of them who stick around will eventually branch out beyond shit people say on reddit and buzz fed to them by their favorite reviewers, who are the ones doing the most to inform their decisions. It's kind of an interesting climate. I think quite misguided a lot of times, but I also think the face and general ecosystem of the hobby is changing quite a lot. This is what you get when you take a niche and expensive interest and broaden it out across the net. You're going to have that crowd that comes in swinging like that, knowing how they want their hobby to be, but really having no way of knowing quite how it actually is... yet.