Has anyone ever used this shopkeeper mod? I've noticed something in it that must be a glitch. If your charisma is over 20 you can sell some items for more than you paid for it. If you have emeralds, for instance, you can sell and buy them back endlessy, making money with each transaction.
At the very least this guy will pay more for items than any other shopkeeper. I'd also recommend buying a bottle of Jack Daniels if for no other reason than the social commentary which becomes obvious once you drink it.
