Is it even possible to just buy panels for normal consumers?
They are mad expensive because presumably they are not subsidised by the shitware that "smart" tvs ship with.
And it's also why premium streaming, which consumers chose as an ad-free alternative over cable TV, does not have ads.
You can't buy your way out of ads because paying just means the advertisers have extra incentive to put shit in front of your eyes.
I'm not sure about using it as a TV (no speakers, matte display), but as a monitor it looks really nice.
The higher cost is because the hardware is designed to run for years 24/7, and the compute hardware is (a little bit) more powerful than regular TVs.