A friend in a record store was always asking me what I thought the best years were. He had nailed it down to a really small window of about 5 years. This guy was one of the sickest record collectors I have ever met as he actually lived in a commercial warehouse with all his records. It was like going into a library to study going over to visit him.
So here is this guy with a warehouse of music and he is telling me about the 5 year window? This is why I think this is a great question. This is why it's cool to try and cut-up the 80s and 90s.
Led Zeppelin 1 Released January 12, 1969
Black Sabbath 1 Released February 13, 1970
Black Sabbath 2 Paranoid Released September 18, 1970
Black Sabbath 3 Master Of Reality Released July 21, 1970
T-Rex The Slider Released July 23, 1972
Hawkwind Doremi Fasol Latido Released November 1972
Alice Cooper Love It To Death Released January 12, 1971
Golden Earring Moontan Released July 1973
Pink Floyd Dark Side Of The Moon Released March 1, 1973