Yeah, that's probably it.You must have very little imagination.
That or Stephanie Meyers is just not a talented writer. She's introduced nothing new to the vampire trope except maybe for plenty of bad prose. I know it's popular to bag on Meyers but she truly deserves it. More power to her for such a successful career, but I think she's fair game for critics. Sure, I'm not her intended audience, but there are authors who write for young women interested in romance and vampire novels (or erotic horror) who don't dumb their stuff down; they appreciate their audience and write accordingly. Laurel Hamilton and her Anita Blake series comes to mind and is much better written than Meyers works.
As for vampires in general, I still think Let the Right One In is the best vampire novel I've read in the last 10 years- it's one of those rarities where the movie is slightly better than the book too. The film omits some unnecessary horror subplots and focuses on the melancholy relationship between Oskar and Eli.
But that might just be due to my lack of imagination.