This small company off the South Loop paid me more than twice what I had been getting from another company. They strip copper wire at no charge, in front of you while you wait and drink a free coke, and then weigh it in front of you. Very pleasant people, willing to work with you on anything you need help with. I have turned on all my electrician buddies and some a/c guys I know. Try it-you will be a happy guy!
Pros: Honest, fair prices and weights, helpful
Cons: open m-f 9-5