Same goes for vinyl. I love techno music from the 90th. It seems that there is an abundance of vinyl that magically survived 20 years of niche existence.

Especially records from the legendary Harthouse label, seems to be ubiquitously available. Harthouse was famous for its limited edition policy and restricted selling of its records. They were very selective and that's how the famous "sound of Frankfurt" was born: access to Harthouse records was limited, and distribution took mainly place here in Frankfurt. It was tough back then to buy certain records even in the famous Delirium store.

Nowadays you simply place an order in the Internets...