I don't think I want to live forever, especially not as a vampire. The only really good part that I can see is that a person could become very wise from all of those experiences he or she has had throughout the centuries. But having to always say goodbye to all of your loved-ones could get a bit depressing. And you're right about the popularity of the vampires! Yesterday I was in a bookstore and there were books about vampires, werewolves, and zombies everywhere.