I find that most cables that are around 18 to 14 gauge are about 50% copper 50% insulation. So for every 2 lbs of this type of wire that you strip you would be making about 1 buck. 2 lbs ins at .85 = 1.70 1 lb copper #2 = 2.50, 2.50-1.70 = .80 profit per 2 lbs of ins. I don't consider these to be worth it unless there solid core #1 not stranded #2, But it really depends on how fast you can strip wire and how much you time you have on your hands. I'm fairly good at it and I can do around 12 lbs a hr so about 6 bucks a hr.. like I said its not worth it to me but I will do it if im just watching tv or something like that.