Tycho Brahe of Penny Arcade pretty much summed up my feeling of the current state of Wii games:
If your Wii is not used exclusively for bowling when your parents are over, you probably get excited when even the most rudimentary sort of game is released. This is because Wii games that even reach the level of “adequate” are not especially common. Speaking from our own experience, we’re hungry for almost any opportunity to make use of the machine, and each time it happens we’re reminded how much we enjoy using it.
(This is the introductory paragraph to his review of a new game that they deemed enjoyable, namely Steven Spielberg’s Boom Blox.)