Towing vs Hauling

If my understanding is correct, pulling a load is easier than carrying it, correct? Would you be better off with that load on a trailer, opposed to on the truck bed? 1300# fills the truck up. If I were to dump that load on a trailer, would the truck do better? Would it do worse? Would it matter that much?

If it were me I'd put the load in the truck cause you have more chance of something happening with a trailer on. Plus the fuel mileage should be worse dragging a trailer. Better able to control your load with it on the truck. Course if the load is big enough for the truck and trailer then my advise is to take it easy on the speed and don't rely on a bumper hitch but a class 4 or 6 instead. Should have trailer brakes on that size of trailer also.