There are plenty of good horror films with no nudity, the Alien films for another example.
I don't think it's a case of
too much boobage in horrors, I think the problem is not enough elsewhere!
On a serious note though, there doesn't have to be nudity in a film, however it's natural, maybe they want to portray the victims as normal people doing normal things.....no? I'm just defending the smut!

but I always hear the argument about video games, like it's ok to have kids sat around cutting each others heads off or killing a village together, but put a sex scene in a game and either it's done so dumb like the chars moving closer and the lights dim or grunting noises off screen, my point is, I agree that gratuitous sex scenes in movies are just that, but sex needs to be more axcepted tin society......with that said
*holds up bottle of booze*
REN toga party!!!!!!