Everyone is skeptical about the Wii U gamepad until they get their hands on one for a little while.
Personally, I never got why it was such a turn-off for everyone. Didn't we learn from the DS that two screens are better than one? So many innovative gameplay opportunities, off-screen play, great for watching videos/surfing the internet (that browser is so god damn good, it's better than my computer browser), sits in your hands and plays comfortably... So what's the issue? At it's worst it provides a convenient way to manage inventories and maps in game, at it's best it redefines videogames as we know them and opens up creative new avenues for the medium. Most of the Wii U hate I've seen reeks of the classic videogamer cognitive dissonance. It's an expensive hobby, so it's much easier to convince yourself that something sucks than it is to fork out 350 dollars, or lament the fact that you don't have 350 dollars with which to fork outwardly.