I think things go in cycles and right now the concept of vampire as romantic heartthrob, bisexual androgyne or Byronic anti-hero seems to be what sells. I don't really care for any of that. I much prefer the idea of soulless monster, undead parasite or bloodsucking ghoul. The myth is flexible enough to have something for everyone and eventually the Twilight stuff will die down and other interpretations will get their chance to be seen.

"When the snows fall and the white winds blow, the lone wolf dies but the pack survives."
Winter is Coming

Now this is the Law of the Jungle—as old and as true as the sky; And the wolf that shall keep it may prosper, but the wolf that shall break it must die.
As the creeper that girdles the tree-trunk, the Law runneth forward and back; For the strength of the Pack is the Wolf, and the strength of the Wolf is the Pack.