I miss when high-end GPUs were $300-400, and you could get something reasonable for $100-200. I guess that's just integrated graphics these days.
The most I've ever spent on a GPU is ~$300, and I don't really see that changing anytime soon, so it'll be a long time before I'll even consider one of these cards.
An older 3060 12GB is also a better option than the B580. It runs around $280, and has much better compatibility (and, likely, better performance).
What I'd love to see on all of these are specs on idle power. I don't mind the 5090 approaching a gigawatt peak, but I want to know what it's doing the rest of the time sitting under my desk when I just have a few windows open and am typing a document.
That time is 25 years ago though, i think the Geforce DDR is the last high end card to fit this price bracket. While cards have gotten a lot more expensive those $300 high end cards should be around $600 now. And $200-400 for low end still exists.