I replace blower motors at work on occasion. I used to let my son take them apart (better those than something I DON'T want disassembled by an 8 year old) and turn in the separate metals. I got to thinking abut it, and it's so labor intensive to separate metals from a motor that it doesn't seem worth it. I don't mess with steel because it takes so much room to have any appreciable dollar value. By the time it's broken down to copper and aluminum, we're better off taking the value as irony(mixed metal/motors). (The locks I have to destroy get taken apart for the brass, and the video cable strips easily for the clean #2 copper)