In all the talk of graphical downgrades no one seems much preoccupied with 'why?'. Why build something and then proceed to tear it down, piece by piece, in the hope that ever more diminished expectations about the final product won't be severe enough to...
Director's Cuts, How To guides, Rocksmiths... the world of downloads are full of things you'd never consider a game.... Wait a second... what the hell is an Enslaved? Eh, screw it, let's just play Beer Pong!
If you do your spring cleaning in winter, guess what you don't have to do come Spring? Nintendo is using the same idealogy to obtain faster than normal rates of selling-all-the-downloads.