I think there is actually MORE good music now than there was in the past precisely because there is more music. For every Lady Gaga there is a Radiohead, for every Kesha there is a TV on the Radio, for every Black Eyed Pea(s) there is The Bad Plus. In the 70s, radio stations played Captain & Teneille. The mass market drivel has always been there, you just can't look to the radio for your musical discovery.