Got three and a half thousand bucks weighing down your coin purse? There are lots of ways to lose it. Charitable contribution, perhaps, treating loved ones, paying off debts OR, if you want a sharp wall-sized flatpanel that will set your GPU on fire, you could put in a pre-order one of Asus' ginormous PQ3210 monitors.
As will probably be the way with 4K monitors for the foreseeable, the Asus PQ321Q is a pro-level 10-bit screen. That professional positioning will likely keep prices higher for 4K monitors than you’ll see in larger 4K TVs. You can already pick up - admittedly probably pretty weak - 4K TVs for around $1,200, for example.