Xbox 360

Why can't I walk into a store and buy an Xbox 360? A Christmas shortage is one thing - there's nothing suprising about that - but it's 3 months later, and clerks in stores just laugh at me when I say "do you have any Xboxes?" It doesn't make any sense. The same stores are full of games and accessories, but no one is going to buy those things if they can't get an Xbox to use them on. So Microsoft isn't just losing sales on the Xboxes, it's losing sales on every Xbox-related item. It just doesn't make any sense to me.