Gasoline usage

I just talked to a friend that works at a local golf course. The golf course has a large RV park that caters to vacationers that wish to travel from golf course to golf course during the year. I was fully expecting her to say that the RV park was empty for this year but no, it is booked solid! She talked to several of the RV owners as they checked in and she asked them about the costs of using the RV. They said that the cost of fuel is only slightly higher than it was last year and it has not made a difference to them yet.