Taft
I think the over/under on this is the comparative small cost for hot water versus not wanting to be sub-par compared to a competitor. If hot water is fairly cheap and your competitor has it but you don't, that's not a place where I would like to be. In a warm climate, hot water isn't that expensive.
btw, the Taft airport is a nice one. I've landed there numerous times back during my pre-car-wash career. Other than being bumpy on approach on hot summer days, that is.