Not headphones but our home sound system is a Marantz system from 1983 which we inherited from a grandparent. The speakers would probably be massively outclassed by modern floor speakers (sound quality wise) but they are perfectly adequate for our needs. It even has an aux input so we can play music off our phones.
AFAIK the turntable and cassette player have had some minor repairs but nothing else has needed maintenance since purchase.
I'm also currently listening to music through a pair of HD202s I bought in 2007 which have copped endless abuse.
My home sound system is the same, except the speakers aren't producing nearly as much treble as they used to. This is apparently a common issue, and now I need to work out how to get the speaker cases open.
AFAIK the turntable and cassette player have had some minor repairs but nothing else has needed maintenance since purchase.
I'm also currently listening to music through a pair of HD202s I bought in 2007 which have copped endless abuse.