I've probably said this in here before, but I spent a pile of money about eight years ago (was it more that the 280 came out ??) and had a 30" monitor that was native 2560x1600. I can't wrap my brain around buying a smaller, lower resolution monitor all these years later.
That said, if I'm only going to go 2k, do I bother with a 1080ti, or just go with a 1080, which should be plenty to run at that resolution?