That is a very, very good and succinct point.
In fact, I believe that there was quite a shortage of Avgas in ZA fairly recently. Reference to the African Aviation forum pages will probably trawl this up.
So there we are then. Back to the good old Dornier 228 which has high wings, fixed gear, a pilot's door and can land on that Gulbenkian thingy which was, of course, a sixpence, or shall we call it a tikkie?