Dumb It down by Lupe Fiasco meaning???

What is the real meaning of the song, he words play to much, its kinda confusing, but still a great rapper.

Go Buy THE COOL, IN STORES NOW.....

that he isn't going to dumb down his lyrics to sale to the mainstream because so much dumb stuff gets played on the radio that only promotes sex violence, breaking the law, and maybe a nice dance move... but its real dumb and lupe is sayin he doesn't want to dumb down his music for radio play.