A friend of mine's husband loves to fly. He own a personal plane. It would be nice if one of these days we could experience flying with him. Anyway, I am pretty sure that he spends a lot of money maintaining it on top of fuel usage. I don't know much about aircraft and things like that, but I know for sure that at one point in time he has been to aircraft hose distributor to buy a fuel hose for his private plane. He probably get great deal or savings going there.