Why not call it horror?

You will notice I call my current novel a dark, urban, fantasy. Why didn't I call it horror?  Because as a horror fan, it did not scare me. I know a couple of readers got scared, but I still would not call it horror.  Some might for one reason. Vampires.

Unfortunately, now a days, putting a vampire in the story doesn't guarantee it's a horror story. Think of the two biggest vampire fictions out there now; Twilight and the Dead series (aka True Blood). Would you seriously tell someone to watch ...