I really don't see why it's selling so much. What the hell are people playing?
Not much. Same on the Xbox One front. There just isn't a lot out at the moment to justify a, "I MUST GET *THIS ONE*!" declaration.
I think its selling so much just from the people that can't let go of the initial advertising of the One even though MS changed their tune and has worked to improve everything.
Right now, the PS4 and One aren't so different in that if you have one, you don't have much to do with it. Who cares about graphics and rendering if there's nothing to do? hahaha
It'll matter more in a couple of years or so. For now, they may as well be two flavors of the same thing.