If you look at the Steam hardware survey, most users (as in, > 50%) are still using 1080p or below.

https://store.steampowered.com/hwsurvey/Steam-Hardware-Softw...

In part though that's not because all those users can't afford >1080p because some of them can it's that insanely high refresh rate monitors and esports players often use 1080p at >300Hz - even the ones without still use 1080p because driving up the frame rate drives down the input latency.

Whether it matters is a bigger issue, 30 to 60Hz I notice a huge difference, 60 to 144Hz@4K I can't tell but I'm old and don't play esports games.

I don't think this is contra to my original point. Nearly 50% of all users are running at greater-than 1080p resolutions, and presumably power users are overrepresented in the latter category (and certainly, it's not just the ~2.5% of Mac users pushing the average up)