Quality of music deteriorating?

I listen to a wide range of music from jazz to rap to good old rock n roll., I'm 23 and I definitely think that music is deteriorating simply because it has become more of a big bucks entertainment industry rather than about the art of making music. plus all this technology had changed the way music sounds. i prefer oldies stuff from the 80s or even the 70s. there are some good artists these days, but they are rare in my opinion.