Why are companies only making 750w+ SFX PSUs now?

A couple of years ago, there were lots of ~550w/~$100 options. Now all I'm seeing are 750, 850, 1100 models for $200 and up. Corsair, Coolermaster, Thermaltake, Lian-li all used to have lower power models, none of which are listed on their sites anymore. Silverstone and EVGA still have some listed, but none in stock anywhere.

Between this and the 2x ITX mobo prices over equivalent ATX models, it feels like companies have it out for us SFF nerds. I mean, I get it... Low volume necessitates higher margins. But then high prices will keep people sticking with ATX, creating a neverending feedback loop of needlessly large computers! 😭