You'd be surprised.
Can't speak for the hetero side of the coin, but according to my escort friend you'd be surprised how many of the Johns are actually decently attractive men. He said the guy who flew him out to Seattle was an attractive middle-aged man, and I'm assuming since he could afford to fly out a group of escorts and pay them 5k to fuck in his penthouse for a week that he was also extremely wealthy. A guy like that shouldn't have any problem getting companionship via normal means. But sometimes people just can't be bothered...
Besides, that comment was just an extremely thoughtless statement anyway. Some johns are losers that can't get women; others can get plenty of women, but prefer the lack of drama and ease of access in an escort. Still others simply want to try something different, maybe a new ethnicity they've never been with before. Maybe others are in a relationship and want to have sex with someone else, so their partner agrees to allow them to go to a john so he can have sex but not form an emotional bond. That actually happens a lot.
It is very open ended.
