Not to be too down here, but my biggest regret is starting too. I think that's because I am just a little too young for it. Not illegally young but especially comparing it to the people in the hobby, i know for sure i'm on the younger side of things. I've had plenty of moments that are so conflicting. On one hand, having a threesome with women, let alone women you are actually attracted to, and all the other degenerate acts and situations I've been in is really fun. but on the other, it leaves me dependant on it more than I thought it would and makes me seriously question if I want to be doing this in a relationship and I don't, I would want to just be loyal. But I also wonder if that's easier said than done now, in terms of self control. so far i've had (mostly) positive experiences (that are mostly 6 months old so no reviews) but only one out of 11 girls has actually left me satisfied for any somewhat significant period of time. Also being young, dumb and broke is never a good combo for such an expensive lotto of a habit.
But to the punters who regret not starting earlier, I can understand that too, I'd rather get it out now and quit than only start doing this in a decade or 2 and realising there is so much I could've done when I was more in my 'prime'.
Very few men are in a position to get the amount of sex they want, when they want it, with the women they want it with, and punting answers that need, plus you get to do it with people who you might never get to see naked in the real world (not just in terms of attractiveness but indulging curiosity about age, background, race, threesomes, bi, BDSM, trans, etc). The downside is that you'll often get the same post-shag ennui you feel following any sex, with an occasional sense of added regret at the whole business of paying. It's the punting deal. Mostly, it seems like a great deal; sometimes, like something you should really give up.