@LukeAlmightya survival website sells a can of pork for 6 usd. My local meijer supermarket sells virtually same thing for 1.99 usd. it's like this across the board. The only time it makes a difference is if you want the food to have a shelf life of longer than 5 years, but the '25-year shelf-life' products will mostly be various carbohydrates in whey powder.