[agumonkey]

At the same time other factors kicks in. As you get older you have less free time, you may or may not want to discover new things, you just listen to some easy songs on your way to work, and start to like them because they're part of your daily routine.

[davidgerard]

On the other hand, there's the factor of the hip music (not the top 100) getting box sets twenty years later ... because that's when the music fans have jobs and money.