Would you care to guess what the cost of moving goods via that resource would be? You may be astounded. It's still cheaper and more effective to use commercial, even if the price has gone up.
I'm sure it's amazing but you only get to count the marginal cost of actually moving the material because we already pay all the other costs of the AMC regardless of whether they do any useful service or not.
They hardly sit. They just fly around for practice if there's nothing else to do. There would undoubtedly be more hours in the air if airlifting equipment from hither to yon, but I doubt there would be more takeoff and land cycles.
