The hardware components have become so small that there is no longer a need to design a creative enclosure. All-in-one computers—phone, tablet, or desktop—can now approach the Platonic ideal of that single flat screen.
Except when they can't. A good GPU still won't fit in a flat case that you describe. And things like the current gen imac feel a little pointless as they are basically laptop guts with a larger screen bundled in. I'd rather get a laptop and a second screen for it than one of those.
