I have never been a great one for computer games. In my line of work sitting in front of a computer for fun seems like a busman's holiday. But the Wii really is better fun that all that other tosh. The Playstation 3 and Xbox 360 may have all the power (although actually all three devices use IBM processors) but their games are so realistic now that you might as well watch a movie. In fact these machines are more like HD Media Centres rather than games boxes. On the other hand the Wii is just a games machine. The innovative Wii Remote (wiimote?) controller really does manage the magic of sensing movement so you can stand up and flail around the room like a mad thing and make your custom avatar (Wii Mii) do the same.
Of course the down side of that is the potential for collateral damage. So catching this lampshade with a particularly committed forehand smash whilst playing Wii Tennis is probably not the last item to be broken. It is worth it though. This Wii is brilliant.