I think this a seriously valid question.
How much is the first apple pc now??
The big key word there is "first". If none of your stuff is the "first" of its kind, it is not going to be worth saving for 20 years (or even 10). And it is NOT about the first new NVIDIA or AMD GPU, or first new AMD or Intel CPU either. Those companies are putting out new models all the time - by the millions! And they are all basically the same. They fit the same PCIe slots, use the same voltages and support the same OS and programs. That is, there is nothing
historically revolutionary (or evolutionary) about them.
Now if you had the
very "first" NVIDIA or ATI graphics card ever, in pristine condition, that would be worth something. Or the very first Intel or AMD CPU - or the very first LCD computer monitor, those would be museum worthy components. Those would be worth something. Same with the very "first" (or last!) AGP graphics card.
It is not like vintage cars that you could then restore and actually use. That is, antique cars can still be functional
and enjoyed by all. Kids of all ages still enjoy seeing a fully restored
Cord or
Duesenberg rolling down Main Street in the annual Veteran's Day Parade. What can you do with a 20 year old computer? Run 20 year old programs? Maybe.
One of the bigger problems in 20 years would be the demand for such vintage computer parts. Who's going to want them and be willing to pay top dollar for them? Very few people and at that point, they will not be looking to pay top dollar for used parts. They would be looking for new, still sealed
in the original packaging (with disks and documentation) components.
I say keep your last 1 or 2 cards as working spares (1 AMD and 1 NVIDIA), then take the rest to a proper electronics recycling center along with your old RAM, processors, motherboards, keyboards and mice, drives, cases, power supplies, printers, and LCD (not CRT) monitors. If lucky like I was, they will actually pay you for the scrap value of the aluminum and steel (based only on weight), and any precious metals from the RAM and processors.
Note I said "not" CRT monitors. I say that because my local electronics recycling center reported environmental protection laws and procedures for safely recovering mercury is too complex and expensive. There is a tiny drop of mercury in each cathode ray "tube". When I took 6 old CRT monitors to my recycling center, they wanted me to pay them $10 each to take them off my hands.
So I lugged them back home, printed a "FREE" sign, taped it to a monitor and lugged it out to the curb. By the time I was taking the 3rd monitor out, someone was loading the first 2 into his truck. He helped with the last 3 and I ended up with a new bedroom in my basement where my old parts store room used to be.