How about a price drop and a bunch of triple AAA games both from Nintendo and third parties...
If that were the case then I'd be exceedingly happy about buying a Wii U. As it is though, I just don't see the point; and if I, a huge Nintendo fan, am not seeing the point, then clearly something enticing needs to be offered. Ideally I would like to see all the things you mention, but realistically I'd take any one of them at this point.
For reasons I don't entirely understand, I bought a Wii U today through the Target $239.99 basic unit special. I had had no plans to do so in the near future, but something about the Xbone reveal seemed to confirm that the industry is getting greasy real fast, and that I won't at any point be interested in a PS4 or One. And $250 feels like the right price for this thing.
I've also been out of a console for about a year since I sold my 360 and my Wii's drive broke. So I was excited just to have a machine again (haven't had a gap since I was 5). I figure I'll have enough Wii U stuff to play through this summer, and presumably there'll be a good fall line up. At this point if Nintendo flames out, I think there'll be a lot of other **** going down as well, so I'm going to stop worrying about it and try to get my money's worth out of the U.
Plusses after 4 or 5 hours: Controller is pretty neat, really. I like the OS: nice and clean, but the Miiverse stuff gives an organic sense to proceedings (hate what the 360 became). eShop is a hell of a lot better than the Wii Shop. NSMBU looks surprisingly great on an HD screen, and AC III looks considerably better than the last 360 AC game I played.
Minuses: Left stick feels too far up. Controller screen looks a bit fuzzy. Needless reversal of now standard X/Y A/B buttons.
Confusion: How exactly does offscreen play work? I assumed there'd be a button on the controller that would toggle this. There's no way it can detect TV input, right? I just booted up the controller without turning on the TV and ended up playing Runner 2 for 20 minutes with headphones plugged in, and it was seamless. But do other games make you change a setting? For such a vaunted selling point, this should be clearer.
Overall, though, I'm digging it, and I'm prepared to ride it down to senescence if need be. I'm taking comfort in the fact that this is probably the last console that won't be an over-extended multimedia nickel-and-dime shitshow. If there are 6-8 games (either eShop or retail) a year that I want to play on the WiiU for the next 4 years, I'll consider it's duty done.
More to the point of the thread, I'm about as diehard Nintendo as you get, and despite the generally alarmed atmosphere, I kinda just succumbed to entropy while fully sympathizing with reasonable arguments about why this thing's doomed. Que sera, sera!