There are plenty of options in the rotomolded realm these days. Some are better than others but not by much. If you don’t have to keep bears out or ice more than 7 days at a time, go the cheaper route for sure. However, I suggest whatever you get in the rotomolded fashion be securable with heavy cable and a lock if you plan to leave it unattended in the back of a truck. They have a nasty habit of sprouting legs and walking away.