Memory makers, for example, have sold out their inventory for several years, but instead of investing to manufacture more, they’re shutting down their consumer divisions. They’re just transferring their consumer supply to their B2B (read AI) supply instead.
Thats likely because they don’t expect this demand to last past a few years.
Many users will not want to risk their privacy, data, and workflow on someone else's rapidly-enshittifying AI cloud model. Right now we don't have much choice, but there are signs of progress.
Many new games cannot run max settings, 4k, 120hz on any modern gpus. We probably need to hit 8k before we max out on the returns higher resolution can provide. Not to mention most game devs are targeting an install base of $500 6 year old consumer hardware, in a world where the 5090 exists.