It's called money!!! Think about it this way, we can't afford to go to concerts. Actually, if you look at albums sells, every other ethnic group buys more hip hop than we ever will. It's all about economics. Remember that a disproportionate number of our people still live below the poverty, so we can't afford a concert. Lastly, it's also a transportation issue. Black folk use public transportation out of neccessity not b/c we want to. There isn't public transportation going to most concert venues. Therefore, just because we ain't at the concert or ain't buying the music I know that we got mad love for our own.