I am going to assume that the Blue belt might be charging less than Roger, and I think that would have a lot to do with people's first initial decision as hobbyist Jiujiteiros. I think once a person realizes they are more serious about their Jiu jitsu, they would probably make a move to a more well known school, but l think a lot of hobbyists/casual players would stick it out with their original school to avoid the percieved pressure of a high performance school like what Roger has to offer.
Just sharing my thoughts.
Just sharing my thoughts.