Vampires may be popular, but they've paid a terrible price for it. Simply put, they're not scary any more. They're not monsters, at least not in the traditional sense. And so, having been de-fanged (as it were), they've been shoved to a different place in the cultural marketplace while center stage for monsters has been claimed by an entirely different species of undead: zombies.

via www.escapistmagazine.com

Once vampires start sparkling, they aren't monsters any more...