I've had a 2560x1440 27" for a long time and recently switched to 4K scaled to 2560x1440 and the difference is absolutely crazy. Everything is so sharp and crisp, letters look so much better, way easier on the eyes. And that's with plenty of people on here claiming that macOS does a bad job downscaling by non-integer values, not that I'd notice anything wrong. I remember my first retina laptop screen felt just as crazy good.

Don't knock it till you try it. 80% of my usage is text - terminal, code or my notes. Even most of my web usage is text.

I won't go less than a high dpi screen, preferably near 4k.

I'm happy with what I have. Why try for more, that just leads to misery when things "have" to be a certain way for you to be happy.

It's the sunset cigar thing. Guy watches the sunset from his porch every evening. One day he smokes a cigar at the same time. Loves it. Now he HAS to smoke a cigar every evening or he can't enjoy it. What has he gained?

A man sleeps on the floor every night; one night he sleeps on a mattress and now needs a mattress every night…

Bad analogy. Nobody is satisfied with sleeping on a bare floor.