Well the people who own one seem to like it^ The WiiU's issue is the percieved value, just like the Vita's. Except the Vita's been out for longer, so it needs to establish some traction somehow.
Call of Duty is on the WiiU by the way ( and on the Wii)
Actually you can trick someone into buying the system by adding the fact that it consumes less power( even though it has a huge ass brick for a power draw ) anything that can be percieved as a plus helps in trying to persuade someone .