Agreed. I bought a Samsung (UN40JU6700) 4k60p curved monitor for ~$800 and it works reasonably well. There are some quirks using a TV as a monitor and I was a little nervous about the screen quality, but it's worked well so far. Also, it's a TV.
edit: I especially like that the DPI is the same as a 27" 2560x1440 monitor.
edit: I especially like that the DPI is the same as a 27" 2560x1440 monitor.