That kinda proves my case
You could with less customized components, probably achieve greater power than what is currently found in the Wii U. Especially if you were to increase the size of it four-fold (so to PS3/Xbox360 size) and not restrict yourself to just 75W.
Going small and low-powered (energy wise) with the Wii U was a mistake imho, obviously a result of designing the console with Japan primarily in mind (because it's a pretty insignificant factor in EU/NA so long as it's not the size of a desktop).
I love the Wii U, but if the box isn't important like Iwata and Reggie said, why didn't they increase the size and power requirements of it so that they could squeeze in more stuff into it at the same price?