Vampire Diarrhee

I still don't get it. First the Twatlight series and now Vampire Diaries. What's with the all new vampire frenzy. There must be a huge deficit in our society that the vampire passion fullfills but I am not sure what that is. What is it with vampire romantic stories that makes them more appealing than regular shows. I have no clue. And as I am writing this my wife just changed the tv to Vampire Diarrhees...aarghhh