I've kind of wondered where some of the rediculously expensive vintages originated, such as vintage max's, big kill, the Fan o"war, the Concheror, and, in particular, Vintage Bill's. I heard that there was a duping glitch involved with the max's, alien swarm parasite, and companion cube pin but i'm not too sure of the specifics; however Vintage Bill's seems to be too cheap of an item when compared to the other glitched viintages. In addition, why is there such a price gap between the vintage kuna/zatoichi and the vintage fan/conch? if they both came from the same weapon update, why such a massive price difference? Any help on this matter will be greatly appreciated :P