IMO... Hip Hop has gone mainstream, prog house, tribal, breaks and the other dance subcultures are not. As long as people are force fed a specific genre as "pop culture", there will always be a larger market for it. For those of us who do not buy in to it, Hip Hop could be just downbeat music with bad singing (depending on your opinion). What is interesting is that electronic music and Hip Hop were as one until the early 80's or so (Arthur Baker, Bambaataa etc..). Since then, Hip Hop or specifically, the "rapper" developed on a seperate path in to a widely marketable product... at the cost of DJing, Graf writing and bboying.