It makes total sense for graphical applications especially with 3d and the emergent VR/AR stuff and something I'll have to keep in mind.

24 definitely can be a bit tight, but realistic for 3 monitor setup.

If I was going with only 2 monitors for software development, or mainly text work, there are nice 2K monitors that are about 25" that are perfect.

I have two older 27" 2K monitors as well and they tend to be too big in the long run, and 3 were untenable.