Mate, if you want or need a fuck, then by all means go to FS and don’t look back.
But many people who may not want to have sex and will be happy to get some massage then a relaxing hand relief. Also, FS shop is a sure thing. Suck suck fuck fuck, many punter would rather have some uncertainty build in, will she won’t she, how far can I go, a bit of courtshiping, chasing, hunting and challenging!
Which can be a different kind of satisfaction or achievement if you could think of it that way.
Cheers