It's in the same boat as the PSVita, waiting for a price cut and killer apps that will push sales. Neither system has games that spontaneously make millions of people think "Oh my God I NEED that!"
I think Nintendo made a big mistake when they decided to release the WiiU early to try to take advantage of holiday sales though. It's obvious this was a last minute management decision for an attempt at an edge up in sales. If one looks at the various software and network issues when the system was first released, along with a surprising lack of even first party support until later this year, I'd say the original release would have been more appropriately placed in Spring 2013. It seems Nintendo management wanted to avoid a repeat of the weak 3DS launch with a holiday boost, but instead got something even worse (for now).