Today, the owner of an E24 is a Bmw enthusiat. Cars in bad shape are starting to dissapear ( rust and more rust ). I remenber a guy bought a TT and having one garage he had no better idea than leaving his really nice 633csi ( with recaro seats, M front spoiler and dog leg gearbox ) in the street !! He didn't even drive it so the car started to rust badly. He finally took it to the scarpyard, with just 77000 km on the clock !! Sad, very sad.
Apart from this one the ones I see in the road and Bmw events are in top condition and some of them still daily use cars ! But I don't see many unfortunately.