I've kind of lived through two phases of obsolescence. Obviously CDs have boomed and busted in the last 21 years, but tapes were still certainly big until I was well into primary school.
I like records and occasionally listen to my parents collections at home.
I have used an 8 track but purely out of curiosity than any intrinsic enjoyment of it. When I moved into my current house one of my roommates found an 8 track in the roof and we played it for a laugh.