I'm interested to read about the retreat, which other members have said the mistresses will have sex with you as well as dominate. That sounds great but a shame there are no face pics. I did see a couple of mistresses elsewhere a while back with mixed results. Typically the websites will say that there is no sexual activity but I thought that was just the mistress covering her back legally, stupid of me I know. First mistress I saw was Porcelain Beauty, who spanked and paddled me before moving onto tie and tease and a rather nice handjob. Unfortunately she stopped just before I could cum. Incidentally, reading between the lines on her website I don't think she even offers handjobs at all now. Second mistress I saw didn't play with my cock at all and by that stage, I worked out that mistressing was just really a vehicle for women who didn't want to be wgs to earn that kind of money.
I think for men who know how the setup works, perhaps the appeal is that you get some kind of a thrill with a kind of guilt free element, having not actually paid for sex. However as closeshave has written, I can see that no sex domination could have the potential to eventually fuck you up, especially as some of the stuff on the ticklists is pretty weird and revolves around the client not being good enough for the mistress. Plus the value for money is poor when for the same money you could shag another girl.
I was talking to a girl who does it who said a lot of her clients are older men (60++) whose plumbing doesn't work any more, so they turn to this as an alternative.
As for the second point, there are some really kinky people out there... if you look at blogs like https://msscarletuk.wordpress.com/
it's a relationship which consists of the wife constantly torturing the bloke, making him drink cold piss, and attacking his cock with stinging nettle, but never having sex with him. He puts up with it, so I assume he gets something out of it.
Having tried it a bit, the whole femdom thing is ok as a fantasy, but in the flesh I get bored. Topping women on the other hand... laying a nice set of red marks across an attractive woman's ass and then her getting on her knees for BJ puts a smile on my face for days.