No, no, that's exactly the point. Not equivalent and not comparable. If I want to fly a bunch of people from LA to NYC and am picking out a Boeing or Airbus passenger airliner, there's a different set of trade offs. There is no 'different set of trade offs' between an airliner and a crop duster (or a super-advanced ultralight designed and hand-assembled by Burt Rutan). Because one of those things is not a passenger airliner. It can't fly bunches of people from LA to NYC.