Most older horror movies are, compared to the now a days "stuff" I think thats the problem now a days, horror movies are more for effects and not scare the pants off you.
You have to admit, seing those movies as a kid, The Shining, The Exorcist, Nightmare on Elm Street, Halloween. You never slept well after.(I know i slept with 1 eye open a coupld of times) Now go back and watch them, you basically laugh at how bad effects, methods to scare you are.