My husband and I opened up our marriage several years ago, and although there are many good things about that, finding good partners who don't come with a lot of baggage or drama isn't always easy. We had an adult special needs son so we don't have a lot of time to waste on bad dates, so we often hire sex workers, including men.
Unfortunately, my favorite guy lives in a nearby state and is only in town a handful of times a year, but when I get to see him, we always have a stellar time, and are quite fond of each other. There's no reason it should have so much stigma, but I feel like there's even more to that than there is to being in an open relationship.
Cowboys 4 Angels is a nationwide escort service for women staffed by straight guys. There was a TV show about them for a while on Starz called Gigolos. They see all kinds of women for all sorts of reasons, including healing after a bad breakup, or to celebrate something like graduation from college. It was a really interesting show that gave great insight into why a woman might hire a male SW and one of the reasons I started down that path.