If it's not causing pollution from leaks or whatever and it's effectively worn out then you could view it as being as good a place as any to store something tha

If it's not causing pollution from leaks or whatever and it's effectively worn out then you could view it as being as good a place as any to store something that someone could later salvage for its scrap value. I remember someone saying similar about plastics (I think). That if we just stored those plastics we can't effectively recycle until such time as it is possible, it would be a greener solution than e.g. incineration