I have tracked my gas milage on the highway for some time (out of boredom) and it seems for every 5 mph I slow down I gain about 2 mpg. But that was not towing a boat, just the car. At about 55mph I get 36 mpg where as at 65 I only get about 32. Around town only 26-28.

I think with the added drag of pulling a boat, you should stay around 55-60 if you want to save on gas. But you might get hit from behind! <img src="http://www.catsailor.com/forums/images/graemlins/shocked.gif" alt="" />

In the truck, without the horse trailer, at 60 on the highway, about 18 mpg (Ford F150 w/4.6L V8) but when I hook up that horse trailer, load 3 1,200lb. horses on it and hit the road, only about 10mpg at 55mph... <img src="http://www.catsailor.com/forums/images/graemlins/blush.gif" alt="" />

On the Marriott thing? Buy a tent, sleeping bag and a cooler full of beer, less than $100. And that's a one time expense (except for the beer)