I have to say, since I got a 144Hz screen I am suddenly able to see the difference between 144Hz and 60Hz, as well as noticing it's looking different even on 30Hz (especially with youtube videos until the buffer's up to par etc.) I'm still fairly confident in my 144Hz / 1440p screen, when 4K with all eye candy on 144Hz will be a thing with a single GPU, I'll be willing to switch over. Right now it's more like a specific case scenario, so I'll stay at "2K" and rather have more than 60fps in games. And I still like to play Overwatch on 144Hz with all the eye candy... I guess I'm a graphics whore that fuels the GPU industry without mining.