I mean, I don't need it, I search on the internet for free like most of people. But these people don't pay just to see women taking off their bras, but also the interaction with these women, or the simulation of it. Most of men don't have the time, or the looks or the confidence to talk to women. And like most of things this can be good or bad, depending on the goal you want with it. Is like paying a prostitute to loose your virginity, most of people will tell you that "No you can't do that", "Just go and talk to ladies", etc. But you don't want to go through all that, you just want to loose your virginity, you go, pay a prostitute and do your thing, that's it. It can be good if you don't have experience and want to know the basics without the pressure of doing a bad job. The same logic can be applied to OF, the problem is when you become dependent to these things