Well, I don't what will and won't be on Wii U. If they get their shit together and release a NFC card game based on Pokémon, they'll probably be profitable for the next 5 years anyway. If Nintendo continues the trend from the last Nintendo Direct, and secures exclusive games through financial and publishing deals with third parties, they may build a better library than people anticipate. I know some people thought this was going to be the generation where Nintendo finally caught up with and gained parity with Microsoft and Sony for big western shooters and action games, but I don't think they would have been able to compete there anyways, and this might yet end up being a better strategy for them. There are a entrenched online communities on Xbox Live and PSN, and the idea of them moving over to the Wii U for Call of Duty always seemed a little preposterous to me.
I'm also not saying graphics don't matter, but I think you overstate how important they are for the average consumer that isn't really into tech. They are extremely important for some, especially the people who post here who live for that shit, but that isn't the mainstream, which really didn't start moving from their PS2 to PS360 until two or three years after they came out.