When do school buses wear out?

Posted by
Don (Spokane, United States) on 14 January 2012 in Documentary & Street.

At an equipment yard, old combines, shool buses and other pieces of farm equipment are stored for scarp metal or parts. These school buses are so close together I wonder if they have been stripped inside. Anyway, they caused me to wonder when a school bus in determined to be ready for the junk pile.