Rather then speculation, at least he has few leak that actually close to real one. If you watch the video he said "AMD PLAN TO...". So it just "plan" prices not final one. Maybe they try to see 1650S before make final prices like previous 5700 series prices drop before launch.
We also have leak 5 navi 14 chip leak with clock speed. It turn out that 5500 Series with 1,717 MHz Game Frequency is Navi 14 XTR meanwhile 5500 with 1670 MHz Game Frequency already using navi 14 XT chip. So for an XT and XTR chip but cut down GPU? That very weird already or maybe AMD plan the 5500 series was cut down like RX 460 that full chip arrive later in RX 560. I not really sure, I just try speculate thing base on what already leak
Navi 14 leak:
https://videocardz.com/82538/five-variants-of-amds-navi-14-gpu-spotted
A) Leaks based on unnamed sources are always dubious. They can of course be accurate, but should nevertheless be approached with healthy skepticism.
B) Saying "AMD plan to" is a statement of fact, which is not how one should speak of rumored/unsubstantiated information. Prefacing with "According to the leak, AMD plans to" is of course something else entirely. But the explicit statement of the information being uncorroborsted and unofficial is of paramount importance.
C) What on earth is a "plan price"? The point of a plan is to make it happen. You don't plan pricing that you aren't aiming to make real. And nobody at AMD is dumb enough to think they can sell a card 5-10% slower than the 1660 for $20-30 more.
D) Again, leaked specs - even hardware IDs and other info from drivers - rarely paint the full picture. Information found like this might be placeholders, preliminary, incomplete or just plain wrong. Will there be five Navi 14 SKUs out there? Undoubtedly, and likely more. OEM 5500 series is 1-2 (high and low clock bins, for example), then there's a 5500 and a 5500 XT for retail, then there's mobile - that's five already - and then there's likely at least one Pro version. It's quite likely Apple will want two Navi 14 SKUs for their laptops too, which are normally separate from non-Mac Radeon Pro cards. It's not unlikely we'll see a further cut-down variant for a 5400 or 5300 card either.
Speculation is fine and good, but it needs to be tempered by realistic outlooks (such as not believing they would charge $240 for an overclocked version of a $150 GPU) and a smidgen of caution. Of course I might be wrong and that random Youtuber might be right, but I'd rather be cautious and wrong than make stupid speculations.
It's actually pretty simple; developing and deploying a flagship card costs more than it would make. It's happened in the past, and it will happen again where they have the faster card and still sell fewer units. It's not worth wasting their cash reserves on that 3% of the market when they can put that into developing cards that fit the average.
For what it's worth this strategy saved their asses in the past. The so called "Small-Die" era of TeraScale where they made extremely competitive mid-range cards in massive quantity for the average consumer instead of focusing efforts into flagships. The reduced unit cost also allowed them to pack newer tech into their cards, advance API feature support, and leverage OEMs with better pricing.
That's true, but it wouldn't be very expensive developing a 64-ish CU bigger sibling to Navi 10 - just scale everything up including the memory interface. It would still be a relatively small die (less than 400mm2) and lowering clocks would keep it within reasonable power limits. This would still of course cost quite a few million dollars to develop, test, tape out and make, but the $6-700 GPU market these days is more than big enough to justify that as long as the card is competitive. Which the 5700 series has demonstrated that it would be. I'm still hoping that "big" Navi 23 rumors with some form of RT are accurate though.