Ram box is one of my main must haves, my last two have them. They work great, I keep all my electrical tools, drill kits etc in the driver side, flares, emergency equipment on the passenger. Life savers on your back, flip the lid and its there. I wouldnt buy one without them. You can skip that ice chest mess, no insulation value, you end up with a wet mess. You'll do better with a simple cooler or fridge. Tool use fantastic.
One funny thing, is they have emergency pull releases inside. I'm not sure where you will find anyone who could possibly get inside. But they are there. I unhook them, I can see a remote chance of a tool sliding and catching the handle just right. pop open doing 70. I dont need that mess. I am quite sure I will never get myself locked in the ram box. Plus some slick willy type, could in theory slip a slim jim up and grab that handle. Pop open. Cut the picks off, wont be the first code any of you have broken, wont be the last.