A few years ago, people would have laughed at the concept.
Now, WII Fit is the latest craze, as featured in a new article about WII from Prevention magazine.

Avatar: The Last Airbender in several countries is a multi award-winning animated television show and currently airs on Nicktoons Network. The show is set in an Asian-influenced world of martial arts and elemental manipulation; the series follows the adventures of Aang and his friends, who try to save the world from war with the Fire [...]