It seems as though every year, teenagers pick a new thing to obsess over. I remember one year it was character backpacks, the next it was the 80's, and now, Vampires.One thing I would like to know, and you can leave this in a comment, is why Vampires are such a big thing in the years 2008 and 2009?I have a couple of reasons why I think teenagers are obsessing:TwilightTwilightTwilightStupidityand...