It's very simple: this happens because we have a GPU monopoly. NV has 85% dGPU marketshare and an uncontested top-end, which drives the halo mind-share. It's nothing to do with inflation, component shortages, COVID, supply chain issues, or any other claptrap certain individuals dream up.
We had the same thing with Intel on 14nm++++++++++ for seven years, getting quad-cores for $1000 and +5% & new motherboard every 18 months. Intel apologists back in the day actually tried to tell us it was impossible to raise IPC any further, that's why poor lil' Intel had no choice in the matter.
Surprise, surprise, as soon as AMD CPUs became competitive again, suddenly customers got good pricing with regular IPC and core count uplift. And given Intel keeps pushing out K/S furnace monstrosities to try to compete at the high-end, we can see just how incompetent they truly were.
Yet some people appear to have no idea (tm) about any of this, yo.