Mario Kart had some impact...but I think it's more along the lines of a big spike in week one, and then MK adding 5,000-8,000 a week to the Wii U baseline in the weeks after week one. The Wii U being bundled / "more of a value" proposition is a large part of why it's up this year vs. last year. Having more games always helps too.
People are difficult to govern because they have too much knowledge.
When there are more laws, there are more criminals.
- Lao Tzu