Paraphrased for comedical purposes:
"We don't want to make the mistake Nintendo made and include everything you would want in a controller, at an expensive price that many will complain about. Our controllers are priced to allow gamers to get extra controllers cheaply to cheap our customers enjoy multiplayer games."
Nintendo's Response:
"And for the price of a low end PS3 ($480.00) you can buy one game and four extra Wii controllers, so you can begin playing four player party games with everyone in the family. We want you to enjoy WiiSports with your entire family, and are pleased that our third party partners are also introducing multiplayer games the entire family can enjoy."
Sony I hate to tell you this, but the public is smarter than this. They can create budgets and add costs together. They know how much it will cost to play multiplayer Wii, and multiplayer PS3...and Wii is still the cheapest multiplayer next generation console on the market.