I've got a little thing for the '70s. The design back then was pretty futuristic in a plastic sort of way. It was like everything and everyone took a sabbatical from the seriousness that was the '60s. All of a sudden people were going places, it was all about adventure and holidays and living life. It was a very optimistic time, indeed. It showed in design. Take a look at these pre-EDM culture treasures from Panasonic. BTW, you know those Technics you have, they're made by Panasonic.
You know what else was pretty great about the '70s, commercials like this.