Over the weekend, Wii Fit went on sale in Japan. Most stores were selling one-Wii Fit-per-person, and it did brisk business with long lines. (With the current health craze in Japan, we imagine that it will continue to do well.) This shouldn't come as a surprise as Nintendo's been advertising Wii Fit pretty hard in primetime here. Hit the jump for CheapyD's unboxing.