The Wii U is probably destined to be a game without many new releases each year. That's something people will have to deal with. That makes it great for a secondary console, though the price needs to be lower for that, or a console for people who don't play a ton of videogames. However, for those with gaming as a primary hobby, it will probably mean replaying a lot of games or picking up another device. On the other hand, it will likely be a good console to pick up a year or two from now, where people can work their way backwards through the available content.
The reality is that Nintendo is not big enough to support a console with a packed release schedule on their own. In some ways that's good for them, as people HAVE to buy Nintendo software, but it's not good if the hardware doesn't sell to begin with. The obvious situation is paying for more outside development but that's a risk. W101 did not work out to Nintendo's advantage, though that's possibly because it wasn't skinned as a Mario game. You also have to wonder at what point Nintendo will decide to minimize risks with the Wii U. They are incredibly frugal with their money. It wouldn't surprise me if they cut risky investments into the Wii U if it continues to struggle.
