I am old enough to remember when the American Halloween was pretty much a kid's only deal, but adults have invaded that space too.
While kids were into the fantasy aspect of it, or the creeps and ghosts deal, adults have seemed to make it a psycho-sexual deal (oh well, we all have our own fantasies I guess).
But you get a lot more cover on Halloween, on the other hand, its become such a crossdresser holiday, that you're all but announcing it to everyone.