Yeah, kind of puts doubts on those target spec documents, where did they come from anyways?
Sony can't really sell at a loss at all, I know we say they can't sell at as big of a loss, but Vita is already selling at a loss last I heard, and at least in 2006 when PS3 was selling at it's 200-400 dollar losses, they still had the adoption of HDTVs to make up the losses, now that business is dead for Sony and they are betting heavy on videogames, with a 31 year low in value, and a new president at the head who should be able to clearly see the future of the playstation brand not returning to PS1(2)... I don't think they will sell it at much of a loss at all, and probably plan to sell it under $400, even if Microsoft's subscription model comes into next gen (which I think we all pretty much hate) they still didn't have this plan when they were coming up with the hardware.
I believe we are expecting too much from PS4 and that it could be 3-6X as powerful as the box they have right now and wouldn't see $1 less from next gen, so why do it?