Funny stuff. But it is all hype. I worked retail as a teenager and I can tell you. A store may have a couple of dozen TVs for 30% off or some discounted toys or whatever, but 90% of the stuff these guys are fighting over is the same price as it always is. In fact, they could get it much cheaper online.
I am sure that some people go just for the fights. They may or may not buy anything but that is not the point. The point is to be in the melee, and to be VICTORIOUS! Seriously though, the prices are the same as they were in October. It is all about hype.