Thanks for bringing up Nintento. The Wii truly was an innovative product, but I can't think of any other must-have product coming from Japan in the last 10-15 years.
The Wii was innovative, but the only reason it sold well was because there were a lot of casual/first-time gamers who purchased the console. The vast majority of these people didn't buy any games other than Wii Sports (which was included with the Wii), and many probably don't even know that you can play other games on the Wii.
And these people are not going to rush out and buy the Wii U - most of them haven't touched their Wiis in years.
