My family is very outdoorsy. We hunt, we fish, we camp, we boat, ride quads, road trip, and overland. We have found that we slightly prefer to eat out of ice chests rather than an electric fridge. And that a roto-molded ice chest lasted just slightly longer in real life use. Just as tdcour said above, if left closed with ice, a roto-molded chest will win hands down. But real world for my family says to save your money and spend it on ice. They can be locked and are bear proof, but in the real world we found that using a cheaper chest we ran out of supplies about equal with ice.