Just a quick note: the best way to buy your MotionPlus hardware is to get a game with it: Tiger Woods PGA Tour 10 adds the peripheral for only $10 over the normal cost of the game. If you'd like to equip multiple controllers with the hardware, just keep one thing in mind: don't buy at GameStop.

The hardware should cost you just $20; Nintendo has the peripheral listed as having a suggested retail price of $19.99. Of course, that's just a suggestion, and as you can see GameStop has decide to ignore that suggestion and sell the MotionPlus for $25. No real reason, just a nice chance to puff up the margin on the sale.

Every other major retail seems to be selling it for the "correct" price, so just keep your eyes open when buying. No need to blow an extra $5 if you don't need to.