It is no secret that the Wii U underperformed for Nintendo. Now, GameStop CEO Paul Raines has come out to say the system, which made use of a tablet-like controller called the GamePad, was "disappointing to everyone."At the same time, however, Raines said it would be unwise to bet against Nintendo, considering the creative talent the company employs and its deep roster of big-name franchises."Wii U was disappointing to everybody, including them," Raines told [a]listdaily (via VideoGamer.com).