Nike and other sneaker companies are pumping out so called "collectable" sneaker to sneaker heads. These people, tempted to say kids but I know too many adults who do this as well, buy the sneakers at $200 and never wear them. Or there are some like the kid in this story http://abcnews.go.com/Business/teenage-sneakerheads-bet-thou... who camp out and buy them only to resell them on eBay right away for double to triple the price.
There is definitely a bubble going on here and someone like me who is very interested in economics and have many friends who are into the sneaker scene, but not as hardcore as a lot of these people, it is going to be interesting to watch it go pop.