I've come to the conclusion that, for the most part, gear heads are metal heads too.... Seems that a mechanical mind appreciates music that was constructed, not created by sampling and mixing other peoples ideas into something of "your own".
I am not trying to be rude here, but you are mistaken. Many hip hop artists do sample, but making a sample sound like a different piece of work is an art. I have tried, and am still learning. But I am also learning to play the guitar. Many Hip Hop artists (that I listen to) travel with a live band. Many play different instruments. But the music I listen to rarely gets radio play unless it's a small station. I like music for the art and joy of it...but mostly what you hear on tv and radio is not good, as far as rap is concerned. Just my $0.02