People are a lot more confident in the futures of the PS4 and Xbox One than that of the Wii U. It doesn't matter if the Wii U has a better lineup of games that are out now if everyone thinks there's barely a year left in the Wii U's life and 5 or 6 for the others.
I mostly agree but again those consoles do WAY MORE than just play video games, even if the media features can be had elsewhere, having an all in one player verses one that does a little is a big difference to many people too. I picked up my PS3 when I did partly because the price was finally reasonable, the library was solid, and I was in the market for a new Blu Ray player *and* needed a new streaming media player to replace my Roku that crapped out on me. The PS3 was a damn bargain considering all it does.
The problem is Nintendo gamers see Wii U as a games console, and see Ps4 and One as ONLY games consoles whereas most people see them as entertainment machines that also play video games. Even general web browsing is superior at least from what I gather, It sure as hell is much better on PS3 than it was on Wii anyways. Again for an extra hundred bucks you don't just get a next gen console with five or so years of potential, you also get a full featured 3D Ultra HD Blu Ray Player that can also watch movies in 4K, all not major selling points to the majority but big enough future proof investments for the techies who also buy these machines who could give a rats ass they play video games. I speak from experience, go to the Blu Ray forum people there worship Blu Ray they live and die buy it and most of them swear their PS3 purchase was based entirely on it being the absolute best blu ray player out there, even by most standards it still is pretty damn good. Put the PS4 up to that crowd and they are likely to switch especially the ones interested in 4K.
That is the big picture, Wii U is a game console, the other two are entertainment consoles. Now when discussing the future of the One you have to bring Steam Machine into the mix as that could disrupt the whole Xbox culture, who knows. But Nintendo is the *last* of the dedicated games only consoles. YES Sony put games first with PS4 to win back some of the fickle gamers, but they still made it a damn good media machine, which consequently was WHY I was interested in the first place as games are well non-existant there too but you can do more with it to remove some of that cognitive dissonence that comes with buying an over priced underpowered less than full featured machine. Nintendo HAS to sell Wii U on games alone because that is all they have, nobody gives a **** it streams Netflix what electronics device out there doesn't do that?