That's definitely one of the reasons they essentially used the Aluminum so much within the pickup. Substantially lighter than utilizing steel or whatever.
The beds being made out of the aluminum some people are on the fence about it because of the videos they've been seeing about how they don't hold up as well as the regular steel beds. But... If you aren't going to be throwing bricks in there or throwing your toolbox in the bed, I'm sure you'll be alright.