WHY ALUMINUM IS BEST FOR FISHING BOATS? Reason one:Cost One of the biggest deciding factors in purchasing a boat is cost and getting the best value for your money. The material cost of aluminum is more expensive than fibreglass pound for pound, but it takes more fiberglass to achieve the same strength as aluminum. It only takes 1,000 pounds of aluminum to equal the strength of 3,000 to 4,000 pounds of fibreglass. This means the cost of an aluminum hull will cost substantially less then a fiberglass hull of comparable strength. The greatest cost advantage of aluminum boats is that they are lightweight with excellent strength. Having a lightweight hull means better fuel efficiency on the water and saving money upfront on a smaller motor. It also means aluminum boats can be towed with a smaller vehicle, giving you even more versatility and better fuel efficiency when trailing.