Obviously the values are not needless given there is demand and or need for the boxes, moreover if it adds more money to the overall equation isn't that a good thing if you decide to collect i.e keep the knife, or sell? Think about it, this helps further turn what is typically considered a wasting asset (meaning overall knives typically depreciate much likes vehicles, travel trailers, etc.) and helps some of them turn into true assets which actually appreciate in value. I think that is kinda of cool. Additionally there is now a market for just knife and or guns boxes for certain models, been to a gun show lately? So again we have added another facet into our overall economy, how is this a bad thing, as what you deem cardboard boxes have been turned into a valuable commodity?
Just so I have this straight your blaming market participants for things occurring in the market, am I right? Observant aren't you as that is typically how markets operate. For the record I keep all of the boxes (knives, guns, and other stuff as well) and all I have is users or back ups waiting to be used when and if the time arises.