How come southern rappers music not selling out in the Midwest,East and west coast?

I was watching a video OJ Da Juicman concert in New York, he got booed it was funny cause he really was not even rapping keep on reaping the same sh1t over and over guess what cause he to get booed out of the stage. Most of these southern rappers music not been played much only these little azz kids playing their crap music.