I think punters can become disillusioned with the scams/stress/expense/bad punts, and they can become desensitized to the sex itself, like people who watch loads of porn, become promiscuous or work as sex workers. Boundaries get pushed outwards as new experiences are sought and people realize the risque stuff isn't so hard after all - I'll always remember reading some woman who wrote about swinging after her divorce, who later got into a relationship with a vanilla partner and realised she needed the stimulation of watching hardcore porn to come with him because her erotic 'tolerance' (to draw a parallel with booze) was so high after all the hook ups, orgies and sex clubs she'd been to. So yes, we can get jaded.
But are the alternatives any better? Realistically I have a much more varied, hotter and more intense sex life because I book escorts than I would trying to pick up civilian chicks. I also save myself a tonne of emotional labour in the process. Assuming I got a wife or GF the law of diminishing returns would apply to that as well. Frankly if sex is your main priority then the only relationship worth having is with a bisexual chick who agrees you can both bang female escorts and sometimes wants a threesome, and how many of us marry women like that?
Personally I go through phases where I think punting is the best decision I ever made as a younger man, and one that has saved me a lifetime of sexual frustration and bitterness. Other times I wonder if I would be in a happy relationship by now if I had to work at getting a woman to go to bed with me. Its a lot easier putting off approaching ladies as a single guy when you know you can just roll out of bed and dial one up. But then there were reasons that I went down the escort route when younger and I've had enough relationships that lasted a few years not to idolize them, so who knows.
I think if you're feeling jaded you should do what therapists advise married couples who are burnt out with each other to do sometimes - just stop for a while till your sex drive comes back. Even a short break makes things seem fresh and exciting again I've found.