You're missing something world-changing actually.
Pick up a copy of the game Ultima Online, the worlds longest running virtual world online game and tinker around with it for a little bit. Players own houses which they spend countless hours upon hours setting up exactly like they want it. Why? Because they can and it's cool plus provides a sense of unique and custom in a world where every other player has the same options.
Is having files stacked one on top of another on your desktop how you REALLY want it to look? If you could make it look more like say... your office, wouldn't you rather stick those important backup files in the safe on a virtual looking wall? Wouldn't you like your email icon to actually be your office "in tray"? Perhaps stick files containing images into what looks like a photo album sitting on a shelf? You could file your vehicle repair bills in the center console of your dream car if you prefer to have it look like the inside of a hot rod.. or... the sky is the limit. When you click on the drawer a closeup version of an open drawer could pop up to show you what's in it etc.
I think it's long overdue that people ditch the "sort by name" level of customization ability in favor of virtual looking screens. Good move Google!
p.s. don't look under the big folder in the lower left drawer of my desk, I don't share my 2pm munchies with anyone!