Prices coming down now for sure, although as I expected it's mostly the high end that is seeing the biggest falls, 3090s going for under a grand on ebay whereas the 3080 are typically still around MSRP. If i'd tried a bit harder I reckon I could've got a 3090 for under £900 this morning but I told myself £800+ is still a silly amount of money to be paying for a second hand GPU, it only looks good because the retail prices is so inflated.
With both Nvidia 4000 and AMD 7000 series expected in the next 6 months or sooner I would be waiting if I had £900 to spend