Professional RTV Stars

I believe that there is such thing as a professional RTV star. There are many RTV stars out there that apperar on different reality shows mostly for the money and fame that they get out of it. Like on the Real World Challenges many of those reality stars appear on numerous challenges just to earn as much money as they. Others on the show say they miss hanging out with their fellow cast members since some don't really see each other that often outside of the show. I think that other RTV stars who do a lot of reality stuff because they got use to being in front of the camera. Some stars think of it as their way of of life.