I'm not actually interested in getting one myself, as I don't see any games that can convince me to withdraw $400 from my bank account. Would I like to try the NSMB and Zombie U ? Sure... Why not. I'd love to try it out. But pay $300 plus tax, plus more for a game ? Not even close.
Now, i know that Nintendo has a certain base of fans that will be there for them for every major launch. Those guys already have their Wii U's preordered, and you also have the whole Ebay/Craigslist profiteer crowd. So, there is going to be some demand from those two camps. The third camp, of average, normal people that aren't looking to flip, and aren't diehard Nintendo fanboys, that's the camp that I'm wondering about. Are these average Joes,and soccer moms going to be interested in getting one of these ? I have two young boys, aged 9 and 12, and they don't have the slightest clue about the Wii U. None of the non-gamers in my circle of friends have any awareness of the Wii U at all.
There is also the Nintendo deliberate shortage factor. Nintendo has been masterful in the past, of orchestrating a strategic shortage, to create the maximum hype possible. Anybody that remembers the Nintendo 64 launch will remember how well Nintendo can do that little parlor trick. The Nintendo 64 was extremely hard to get ahold of, and then all of a sudden, about 8 days before Xmas, the stores were flooded with N64's, so that every kid that wanted one under his Xmas tree had the potential of getting one. (whether their parents would pay the $$$ was another story...)