I agree. By the logic of this case, a homeless guy lives in a 2-bedroom apartment.
I like the externally powered concepts -- as we discussed on [H], I would love to see the 3L mini-tower version (still don't get how it's possible), and the 3L console-style is interesting, although it relies on using dual 160W 24-pin DC-DCs, which is... interesting.
@Kmpkt -- is it possible to daisy chain your Dynamo 160Ws?
And I also liked the concept with only a low-profile GPU + 160W 24-pin DC-DC. That would indeed be the smallest ITX case that uses discrete graphics.
So the OP has some interesting ideas... I mean sure, they step on some previously done stuff, but there are only so many ways to arrange an ITX board, graphics card, and PSU. So... competition is good. But I think this externally-mounted SFX PSU concept is silly, no one would do that... I mean at that point just run an open bench.