I supervise our Code Enforcement team for the County and it's a PITA to get people to get rid of their vehicles. Out here, we get the complaints usually, but it's primarily handled through our Environmental Health department for solid waste. I'd say 90% of the time it's a situation where they held on with the hopes of rebuilding and just never happened. A lot of times they're left because the spouse or family member passed and they just didn't know what to do with it, but didn't quite want to let it go. Then there's the hoarder/junkyard type who thinks they can work on it and sell it for a quick buck, but they have no money to begin with so shit just accumulates.