I do agree with this but I also somewhat agree with the exchange for sex. I wouldn't want money in exchange for sex in my relationship, but something like a massage. I don't get enough massages and I have some serious neck problems that cause me headaches every single day. And in my current relationship, I never, ever reach orgasm. Ever. But he always does, of course. So seeing as sex isn't great for me, also considering that he almost always gets anal (which bothers me sometimes, it's the only way he gets off anymore, so my vag doesn't get much attention at all), I am very rarely in the mood for it. Maybe once a month, maybe less. It's sad, really. If sex was good for me, I would be in the mood more often.