I'm sure there are lots of people out there who do use these types of services. I think for the most part, the people who use these services are lonely and in need of some companionship more than anything.
Yes I think the more attractive women in the world are really looking for sugar daddies. They know the are attractive and they also know that men who use dating services are a little more on the desperate side. So it makes sense that it is really easy for them to get one with just a little work.