Overkill?
19200x2400 is probably overkill. But doesn't it look nice!
I suppose if you have to monitor some feeds, want to have various things running in the background, that kind of thing... Is this the future? I suppose it would be neat for playing games on that could support that kind of resolution. Car games where you could physically turn your head to look out the side windows for example. What's next? Screens that you surround yourself in for flight-simulators, and a USB swivel chair, so that you can turn around properly?