Seems to me, people really need to struggle in choosing between Nextbox or PS4, they share the same core concept and pretty much have the same games and audience. Ferrari or Lambo, BmW or MB, you still could use a 4x4 or a convertible cruiser, where the primary decision to buy is function over specs.
Wii U will entertain you with Nintendo's long celebrated IPs (more than MSFT or Sony can boast combined), incresing 3rd party support - staring from Japan...Capcom's Monster Hunter, SE's DQ are their most valuable IPs. If you are a true fan of gaming (vs fan of a particular brand), you will be able to enjoy the next generation of games.
Gamepad is no gimmick. It is a game changer. It doesn't just change how you interact with the game (how many buttons, motion or no motion, or no physical input), the secondary screen is an added dimension to gaming. Not unlike two front facing speakers vs 5.1 or 7.1 surround. The visual coming AT you, your ability to now physically see a truly multidimensional world albeit via a small window is much more engaging than 3D visual on a screen.
Imagine when the game takes advatage of surround sound, giving you a sense of direction of incoming danger, and you are able to pivot your view to gain visual. This is not the same as panning the camera angle. Especially in local multiplayer, if your friend is the pilot and you are the gun man. Or if you are the Jedi, and player 2 is R2D2 and your wife is ....well you get the point.
The gamepad alo excels at inventory management and decluttering of screen space, further enhancing the realism of high definition visuals. And doing all that with no lag.
There are trolls who compare Vita and PS3 linkage etc. They must not have experienced the Gamepad in person. Unless the machine is designed from ground up and successfully reduce the latency to that of Wii U, no traffic over and around the internet is going to ensure no lag. Imagine hearing the sound first, then seeing the image. Sound will travel faster than visual...that would suck big time.
Of course if Sony or MSFT have the balls to implement it right away, and pre-announce it. Then Wii U's only selling point would be Nintendo IPs. For me, that alone is worth buying. But for many, I'm sure they'd choose to wait.
But for the love of all thats fun, addictive and mesmerizing about gaming, give Wii U a shot! How can this not complement PC gaming, or nextgen High Def! Remember too, screen resolution was way way way more refined than today's HD TV many years ago. It's your entire TV, Motion Picture industry that just aint gonna be able or willing to keep up with computer monitr type resolution, which simply is more pixels than the eyes can distinguish.
How much more than 1080p @ 60 frames per second can enhance gaming? At some point, the "output" difference will plateau, just like Audio slowed to a crawl and not many people even raise a heart beat when told sbout 7.1 vs 5.1. Wii U ensures you that at least visually, the TV on which you play it, the programs which you will likely receive are all in sync. The rest of the advance in gaming can, and in my opinion shoud be revoluion in how it is played and no just the same old evolution of how many more polygons or pixels are displayed.
I'll still buy PS4 or Nextbox but not because I anticipate they would be better than Wii U, but that they might just be different enough maybe a new game changer IP appears there instead!