What an odd posting.... I would not pretend to speak for other men, but I love making a clean, healthy WG cum, and thoroughly enjoy the slow build-up of their sexual arousal. If I had to guess, I would say I could make maybe eight out of ten WGs cum within five to fifteen minutes. I love to watch them cum against their will sometimes, and it turns me on considerably. Of the ten women, maybe one in ten will not like RO, and maybe one in ten will certainly fake their orgasm. The other eight like/love it to varying degrees.
If you are a 'pump and dump' punter just there to drop your load somehow with no concern about the woman's enjoyment, you won't give two shits whether she cums. As long as the pussy, boobs, hands or mouth are lubed and functional, you will see her cumming as a waste of time and effort. But, if you find yourself enjoying some sort of sex with a highly aroused woman, it is a lot more fun for many men, I would bet. It sure is for me. Thirty years ago, I don't think I was as effective at RO as I became, and I love seeing and feeling a woman cum - it's a valuable part of any encounter. Of the eight out of ten, I have found that maybe two or three of the eight definitely give you a better service because you have taken the trouble to make them feel good too. So when you come back, they know what they will get and the whole experience is often better than if you just fuck them and leave. Others may not care very much, but over time, it definitely pays off to make the WG aroused and satisfied, and the real gems often become regulars. They are human, and for me, I love a good GFE. I like to be happy, and if the WG seems happy-ish, I like that too. It's not ego to say it all, but there are plenty of guys who like the same process, even if you don't. So if they get clues about sexually responsive women, that is useful too. Satisfying any woman in bed is rarely a waste of time!