Unfortunately most of the GPUs aren't usable by gamers. We aren't talking mining booms where miners buy up gaming GPU stock, then sell cheap when the bubble bursts.

We're talking companies buying huge GPUs that don't have video outputs and have an altered software stack to what's used for gaming, missing all kinds of features and game specific patches.

Granted, many 4090/5090s were also used, and those will be usable by gamers, but even with a significant price drop on those, only richer gamers will find that to be viable.

Somewhat similar story for memory - a lot of it is tied up in HBM, or as GDDR on enterprise graphics cards.