| | More Masturbation = Less Sex
I am not an expert in this topic and I haven't given it any thought, but I have heard that men who masturbate a lot tend to project a disinterest in sex, because they don't "need it" as badly as a man who does not masturbate, and hence they do not attract women as much.
That is of course assuming that men who watch pornography actually masturbate while watching, which I think is a given. But then again, there could be men who watch for entertainment and educational purposes.
This theory about men who masturbate and their disinterest in sex came from a psychology class I took in college. It probably has some correlation to the law of attraction. It makes sense in my head, but since I am no expert in masturbation, I can't explain it in scientific terms.