well as some have pointed out in the past...january sales may have been skewed because the returns from all the people who bought the Wii U just to turn it over cancelled out a good deal of the sales. This means that Wii U's weakest week wasn't (likely) quite as weak but the console sold less in december than it actually retained. I am curious to see how the decent second half of march software-wise treats the Wii U saleswise...
http://www.neogaf.com/forum/showthread.php?t=517506