Great theory. I'd definitely love to have 4k 120hz displays, but until I'm not broke, I'll stick with my old low-res monitors I picked up for $20 apiece. They suck, but not everyone has the money for $500 panels, let alone the insanely-priced four-figure ones the author recommends. I'll probably just suffer through another decade of garbage text until they get cheap.
Yep. I've got my own little fleet of machines, mostly laptops with busted displays, that I run as servers for my own personal edification. Dirt cheap and useful. I've even got a pentium box that still works fine.