You think the Dude is Slaughterhouse are broke? I think they are comfortable could they be rich if they changed their style and were more radio friendly, maybe but if they feel they would have to give up more than they want to be superstars than maybe they just don't wanna make THAT jump they don't wanna be soulja boy or plies and make the same song over and over. Dave Chapelle worked his ass of to get that show, but when they took away is creative license he decided be rather do what he loved instead of taking the money, shocking I know but some people would rather be in the middle and be able to do what they love the way they love to do it on a medium stage than do it they way someone else wants them to on a stage for the world.
and why is this so much about money? or popularity? that has nothing to do with being the best.
Now if you wanna go with the Thread topic then you are right Record sales would be very valid, but to say it has anything to with skill is a bit too much. Especially in the music indestry where its all hype and who your are signed to who you know and who pays who c'mon Chrissette Michelle is way more talented than Rihanna yet who is mor popular?