I did that for a day once, it was quite interesting, helping out a mate. Some guy had chopped a Metro in half and wanted it gone - it was fun getting that on the pickup!
Someone else had a load of lightweight rusty scaffolding round the back of his garage, along with an old copper tank and about half a hundredweight of copper piping.
Another chap had replaced all his cast iron gutters and drainpipes with pvc - removing the old ones with a sledgehammer
- and wanted the bits gone.
All told, we made about £150 that day. Nowadays, with the price of scrap being so much higher, I'd guess we'd have made around £250 for the same load.
REEEEEEEEEEEEEEEEEEEEG BONE!