I don't think I have ever bought anything from Midway, and I probably won't - not the best purveyor of goods.

You have demonstrated the obvious benefit of familiarizing with critical gear, rather than just packing it away for the dreaded emergency. This applies to all types of gear, not just strictly emergency items.

With respect to the mirror itself, what is one to do if there is trouble and a top of the line, mil-spec mirror is not available, but you have something else with a shiny surface? There are various techniques which will accomplish the same end. importantly, "angle of incidence equals angle of reflection" is true whether you have the very best mirror or merely a shiny frying pan. The ability to improvise and think outside the box is often critical in survival situations.....