There are practical things to consider.

Are you willing to alternate between browsing/movie watching/game playing every hour or so to prevent burn-in, every single day?

Do you know how far the distance you have to sit away as the desktop replacement? Do your room has that space (presumely yes)

Also, what DPI you have to change to in order for you to read the fonts? Not all programs scales with the DPI. I can tell you some installation screens' texts screws up with enlarged DPI.