My wife hates it but I don't give a shit. Any chick that considers it cheating is incredibly insecure and has no business being in a relationship.
What other Bill Engvall routines do you take as facts? There are probably a lot of guys like that but I'd bet there are more who just don't want to fuck the same chick over and over anymore. I've only been married for a year and a half and I'm fucking sick of it.
You're obviously a younger fella. If sex is so important to you that you need to do it 5 days out of the week, you haven't been in a long term relationship.
Sex is awesome, but sometimes I just want to rub one and clean it up with a dirty towel rather than getting her wet and making sure she finishes. I'm also really out shape so it is much easier to just jerk off rather than all of the extra work it takes to fuck someone.