doesn't matter if people buy 4090/4080 and sell their 3090/3080 ..(they'll be more likely to upgrade), then should see more cards on 2nd hand mkt..why buy a 3070ti for £550 when someone might sell a 2nd hand 3080 for same price or less...that'll put pressure on prices, which will ripple down price curve.Hang on for what… the 4090? The OP has a limited budget. Or waiting for prices to come down? Gods knows how long that will take… unless a 4060 is released in Sep 2022.
Case by case… everyone is in a different situation.
To the OP… go grab your GPU.
saying that new 4080 $899, and with dollar/sterling, prob £850 base card, aib £100+ more, don't think it'll crash mkt too much.
on back of today, if OP desperate, wouldn't bother hanging around too much..leaves door open for AMD to undercut them in price though