I use 2 32" 4K which cost about $800 for both monitors. The small gap between the monitors is annoying but I can't really justify paying $2k more. Also there is a samsung dual 4k that is about the same price as the dell.

Moving my head to see everything doesn't bother me. I also have a setup with 3 32" 4k which I find a little too wide but in that setup 1 monitor connects to different computer.