OK, it childish of me. But if AA is trying to increase revenue by charging $15 for the 1st checked bag, I say that you make sure that your checked bag is as heavy as permitted before going to the airport by packing a rock or two in your bag. This way, the combined effect over many travelers would be increased fuel consumption and defeat the revenue generating angle. If you over-estimate your weight, just pull out your rock and have agent re-weigh your bag.