Wow - I hadn't checked the copper cent value on coinflation lately but currently U.S. copper cents are worth $.0245 - I thought maybe they were still under $.02 each. I know others here have mentioned making a little money selling copper. And maybe copper cents will be worth $.03 each again sometime soon which would likely increase demand and chances of finding some buyers. And maybe before long people might be paying as much as $.02 each for them. That would be a quick 100% profit.
If I was getting 40% copper per box I'd be doing 20 boxes a week. You east costers have all the luck. More silver, more copper, more wheats, more old stuff in general. Even the metal detecting is better.