Well, you also have the FED and STATE/COUNTY EPA, property and personal property taxes and liability insurance, not to mention labor costs. But pretty soon, it is going to be the only source of quality replacement parts as new parts (incl OEM) are pure junk.
Usually, the larger yards would take a salvage in and completely part it out (incl lubricant, coolant and fuel drainage to be recycled $$$) and crush anything left non-sell able.
For example, if a body shop needs a take-off replacement power door, and the yard only has a manual door, they would rebuild the door with other take-off components.
Huge differences in classic yards and late model production yards.
As for personal property taxes, here in WEST BY GOD VIRGINIA you pay taxes on a vehicle even if not tagged. They operate heliocopters to fly over say a farm or industrial area to find any non-tagged vehicles.
PAUL? Your take on the subject?