We had 4 A's in the past.
We spend less time on the road now. Do not need all that storage space.
Lower roof line. Comfortable ride in the C. Sitting between the Axel's than over the axel. So less bounce up front.
Gas station air. You have to drive there. Than tires are hot. Most gas station no way will you get a MH close enough to use there sir.
My AIr Comp. I have on board. Fill my 80 psi tires. Faster than the bigger tank version in my garage. Was just thinking out loud on this. Thought I could gain a little storage space and loose some weight. Guess I will keep it. Never know when someone else might need air.