Ai pcs are actually being bought. most of the pcs being used for local AI purposes are fully rammed out mac mini/studios or strix halo desktops, which are almost solely sold by smaller oems and are backed up.

most AI pcs arent the ones the large oems clamour about (basically unused NPUs, and to a lesser extent, nvidia based computers with high vram gpus)

the latter doesnt offer the vram required for the people who want to do in house Ai.