Retail vehicle sales venues are usually filled with shiny examples that a number of people would find fun to drive. Whether they had any intention to purchase or were simply doing research would be the next question.
There are a number of million dollar super-cars I would love to take on a demo but have no intention to ever purchase. It would be a rather dumb salesman who would turn me lose in one to burn their four dollar a gallon fuel and waste their time.
Folks, dealerships are not Disneyland and don't sell all day tickets to ride. Any decent salesman is going to have a reasonable expectation that there could eventually be a sale involved before handing someone the keys. Simply putting someone in the drivers seat because they want to research the driving dynamics of several different motor homes does not always advance the purpose.