You'd think so... But from what I can quickly see, the cheapest 32-inch UHD TV is still ~$450, unless you go no-name, then you can go $350... I had the same thought a couple years ago when I got this one. 32" is just the right size for PC stuffs (personally speaking), though if I wanted larger, I would certainly go TV. And I don't think you'll get a TV that is any faster than 60hz for that price. Unless you don't mind that extrapolation tech stuff, like TrueMotion or whatever that is actually 30hz with made up between frames to make it "look" 60hz or 6Khz or whatever number they mark on the box.
That was my experience looking for a nice size display a couple years ago, and it seems to hold true today. Though, you might get lucky and find an open-box item, or a return (especially after football season), or a display model for huge mark-down (sometimes up to 80 per cent) that works perfectly fine, if you shop in-store.
But yeh, if you can find a 32+-inch UHD HDR tellie for 350, then for sure hop on it. At the end of the day, regardless of which way you go, you'll be happy because you won't have the alternative sitting right next to it to compare constantly.
TVs sweet spot is around 40-50 inches for low-price. Especially at UHD (2160p, 16:9) as the yield is better, so they can sell it at a lower price to the consumer.
Though, admittedly, I'm just waiting for the day with a 240hz display becomes common.