Scientific-ish proof here. The money quote: ” In most of the estimated models, the effect of video game playing is found to be comparable to the effect of educational activities, suggesting that some video games may have as much potential to improve children’s problem solving skills as
more traditional educational tools. Irrespective of the preferred identification strategy and model specification, video game playing is never found to negatively affect children’s problem solving skills.”
So basically, Josh, you would be a bad parent if you don’t buy a Wii U.