If you're interested in adding Microsoft's Kinect to your Xbox 360, which comes out November 4, you might want to check out Walmart.com's $199 preorder option that it's serving up until July 23.
The bundle includes the Kinect ($150 value) along with your choice of one of six Kinect launch titles and a $30 Walmart.com e-gift card that you can apply to a second Kinect game (or not). The list price of most Kinect games is $60, so if you do the math, the whole thing works out to a $10 savings plus that gift card.
Worth it? Probably. Or you could just trade in a few games at GameStop and use the trade-in value toward the Kinect and a game or two. We also assume that there will be other Kinect bundles in the future.