Wii had an easy controller, easy appealing games, like Wii Sports and Wii Fit.
With WiiU, they said they gone hardcore. But the hardcores don't want Nintendo products.
So, I'm a casual gamer. I loved Wii. My wife loved. My tiny kids loved, because it was easy.
Now, with WiiU, they offer a bad tablet experience, that requires recharge all the time. No easy controller, no wide appealing games.
Wii Sports, Wii Fit, all the best selling games for all the times.
Nintendo is the only company over the world, that produced a big hit in the market (and their best selling product), and denied it totally later.