Insulated copper wire

Funny, I don't think I saw a comment about the environmental/toxic results from burning wire insulation. Your not reproducing the same effect of a large high temp incinerator by burning it at low temperatures in your back yard. The low temperature burning of the insulation releases all kinds of nasty byproducts into the air/ground/water etc. There is also no way for you to scrub out toxic gasses as a proper facility would.. Its just not worth it in the long run to poison the surroundings you might wish to pass on just to make a few extra bucks now.
And not to mention the inclusion of HCL or Caustic into the cleaning process to "brighten" the copper back up, those metal salts like copper chloride are horrible for not only the environment, but they can wreak havoc on waste water treatment equipment, so in actuality your creating more toxic waste in the process of making a few extra dollars..its not what scrappers of today should be about.