In 20 years, the music critics and nerds will have slimmed down this decade's music output to only the best music, as well as some of the bigger hits (whether they were good or not). I mean, there was a TON of shitty music released in the 1960s, yet you'll never hear it on classic rock radio.
For example, in 1966 a terrible song called "Winchester Cathedral" ([link]http://www.youtube.com/watch?v=Wv_RfFmJ5nA&feature=related[/link]) was a huge hit, and even beat out The Beach Boys' "Good Vibrations" and The Beatles' "Eleanor Rigby" for the Grammy for Best Rock Song. Yes, in 1966, this pile of shit was considered better than either of those two masterpieces. And yet, you'll never, ever hear it on the radio.
Don't worry, culture has a great way of straining out the shit.
For example, in 1966 a terrible song called "Winchester Cathedral" ([link]http://www.youtube.com/watch?v=Wv_RfFmJ5nA&feature=related[/link]) was a huge hit, and even beat out The Beach Boys' "Good Vibrations" and The Beatles' "Eleanor Rigby" for the Grammy for Best Rock Song. Yes, in 1966, this pile of shit was considered better than either of those two masterpieces. And yet, you'll never, ever hear it on the radio.
Don't worry, culture has a great way of straining out the shit.