There's that large grass/dirt area East of the tie-downs near the restaurant at AJO, and I suspect that you could make a case for that representing MORE revenue for the airport than less. The big point would be that you would never be a customer of the "regular" tiedowns because your airplane can be folded into a trailer and taken home. But if you can give then $50 a month to park a container out in the back dirt area, then you would leave the airplane at the airport and they have more revenue than they would have had. Topaz mentioning Corona brings up another REALLY important point. SOME of the shipping containers are water-tight. Corona airport gets flooded completely every 5-8 years. If he had his little motorglider parked in a proper seaworthy container out there and the airport flooded, he would have some reasonable chance that his airplane would not get soaked.