I can't tell you how many times I asked the operators and the answer was nearly always the same. They were more stable at height and they were more comfortable and these were 4+ year old trucks normally. I think a happy employee that is comfortable with a truck will out perform one that is in a truck they are afraid to work at height. I can't comment on operating cost. The Crown techs I delt with at these locations always seemed competent, but that being said I was almost always in a factory store area.