I have owned two duallys over the years and if you are going to haul a heavy load, get the dually. It is cheaper, and wiser, to have an extra heavy truck. For the down side, it is a pain to park in narrow spaces in parking lots. I currently have a SRW F-350 and I put my camper on a trailer instead of the truck. If it were going on the truck, I would get a dually again.