I can point out 6 or 7 in my beighborhood right now. I suppose one of the problems is that of disposal, or just not knowing how to get rid of it. Many communities have a limit as to how much time is allowed for a car with no tags to sit around.
What I don't get - many auto salvage yards will haul off dead cars for free - and some will even pay you a little for it - depending on how much of it is "salvage-able".