A standard 2560x1440 27 inch display is 109 though, so all it gives you is a bigger picture. For a TV or digital sign that might be interesting but not for those wanting a workstation desktop with the DPI they've come to enjoy in their smartphone/tablet/laptops.

Sign me up also for a 21-24inch 4k display to write code on.

It's not bad, but it's not good either. My ThinkPad display has 141 pixels per inch, and I wish it had a lot higher pixel density than that. Even with my 61-year-old eyes, I can still see the pixels, which tells me they are too big.

Of course people have different taste in displays, so what works for me may be different from what works for you. I just like higher-density displays.