When I bought it ten years ago, my backpacking stove cost me more than $100, and each time I fly to a destination trip, I've got to scout a local outdoor store to get my fuel bottles filled or source some disposable canisters.
The DIY Mountain Ranger Camp Stove, on the other hand, is made from (maybe) $5 in new materials and some recyclables and relies on found fuel - small twigs, sticks, and brush, to produce a very hot flame, very quickly.
So. As we often find on ManMade, the DIY option makes a compelling case.
I've cooked a lot of meals in the outdoors, and every meal has come about the same way - with a bit of heat. Make a stove out of an empty can and an ounce of alcohol for a light, compact system that will keep you cooking well in the wild.