Well the above posters have pretty much summed it up. But then again I'm a bit damaged when it comes to being able to get scared, so I guess it doesn't count. But I just never found movies about serial killers, slashers etc to be worthy of being called "horror". They should make up a new genre for it or just call them thrillers.

But yeah, I probably shouldn't judge. There's tons of people out there that are way more easily scared so for them I imagine these movies are intriguing.