The list author says: "Having something and never needing it is better than not having something when you really need it. This is a list for emergency preparation. This is primarily for on the go and is missing a few items Amazon doesn't sell (smartwool socks, for example). A stay-at-home kit would have totally different items. But, if you needed to evacuate and you had this kit, you would be better prepared than anyone else you might come across.
In creating this list, I've attempted to find the highest rated, lowest cost items that fit a particular need."