Get a few preppers together, and you can pretty much guarantee that at some point bug out bags and bartering will come up. My personal take is that it’s a little bit foolish to stock something solely to barter – especially stuff that relates to addictions, because people with addictions can be a little bit crazy about their vices. Stocking things that can get used by the household means there’s little regret about expenditures in 2-10 years, whether a disaster occurs or not.
There have been other bartering articles on TPJ, and they’re totally worth looking at. I have zero arguments with the gear, meds, candles, batteries, foods and feel-goods that show up on those lists and are so very common when it comes up on forums. Still, there are some things that are very, very useful, readily affordable, readily portable in a bag or loaded into a game cart to take to Bartertown, and that I see very few people talk about – period, but almost never in the “barter” conversations and posts.