I can't see the ad for some reason so I can't see the price or the the MH itself. I will tell you when selling anything you never point out the negatives. I don't see the gas mileage as a negative for a MH. Anyone looking for a Class C and makes the gas mileage a deal breaker is a waste of your time and theirs. Point out the positives and sell it that way. A MH allows a life style that no other thing can give you. The freedom, your own bed, your own shower, control your own food intake (healthy), taking your house with you, your own clean bathroom on the road, no booking hotels, able to change your route on the go, no back tracking after a day of exploring to pickup your trailer, self contained, no hooking up, great for day trips, safe at rest areas by not having to leave the main vehicle.....you get the point. That is how you sell your MH.