This is normal with every new console, specially a "lone wolf" in the new gen like the Wii U currently is. Only the Wii (and the 360 I guess) have been a different story but considering it's high success and the not so successful Gamecube there is no surprise here. But yeah for a lot of people (thankfully not much on this site) the Wii U is the worst selling console in history.
Nintendo and PC gamer