It doesn't have to, there are enough high caliber games coming around its launch that it just adds to the reasons why one would pick up a WiiU. Its not a starter, but its a great bench player. Its supposed to be releasing in October if I recall, meaning it'll have help from Wonderful 101 and Pikmin 3 still, as well as Arkham Origins and Splinter Cell. It'll be a good second half for the Wii U with titles like these all being available so close together.
Games are fun.