The wii left a bad taste in hard-core gamers mouth and casuals have long sold their Wiis or are content without upgrading. Also the PS3 and's box 360 are fulfilling the needs of a lot of gamers. The Wii U is stuck between a rock and a hard place and needs amazing games to bail it out. N it also needs to distinguish itself some PS3 and Xbox 360 either graphic wise or gameplay wise or else gamers will not upgrade to it