As someone often paid to think like a criminal ( in order to stop criminals ), these look like a prime opportunity for a violent cartel to both stock up on ammo and launder money.
Come to think of it, that may be a meta-joke I missed in Borderlands.
The photo recognition ought to put a bit of a damper on it, but I feel like a motivated "investor" could find work-arounds (or just unwitting "mules").
The point of vending machines is convenience of getting something cold on the go (or snacks, but a shelf works for those too)...this solved a problem no one had to make a statement no one cares about....GJ?
Brothers and sisters, if you and I would just realize, that once we learn to talk the language that they understand, they will then get the point. You can't ever reach a man if you don't speak his language. If a man speaks the language of brute force, you can't come to him with peace. Why goodnight! He'll break you in two, as he has been doing all along. If a man speaks French, you can't speak to him in German. If he speaks Swahili, you can't communicate with him in Chinese. You have to find out, what does this man speak? Once you know his language, learn how to speak his language. He'll get the point, there will be some dialogue, some communication, and some understanding will be developed... Learn the language that they understand, and then when they come up on our door step to talk, we can talk.