Its funny how people miss the point about WiiSports and why it is revolutionary, generation-defining, and awesome... WiiSports changed the entire market with its charm and accessability. Instead of growing at a normal rate of growth (videogames compared to the rest of economic growth) video games are growing at a rate that was not imaginable in 2005.
WiiSports is the culmanation of what DS started and has introduced or reintroduced people to the idea of actually putting a toy in the living room for use by the adults.
I would cite regulation, but I know you will simply ignore it.