It's a fantasy role-playing game.

DM: You are Percival de Rolo, a human gunslinger . You are the member of the famous group of adventurers. Previously, Percy decides to try his hand at finding a magic shop. Despite his efforts at haggling with the storeowner he does find, he utterly fails to convince her to sell her wares for a reduced price.
DM: "Well, knowing that is now a magic potion of healing and two other magical potions, that is a very valuable belt with its contents. I would sell you just the belt for five silver pieces. To include the vials, and they do come as a set, unfortunately, that would run you 275 gold pieces."
Player: Now, see, we don't know what kind of healing potion that is, and those other two vials could have-- there is an expiration date on those things. And how long have you had it?
DM: "We've had it for a number of years."
Player: A number of years? Well, in that case, they've probably gone stale by now. I would say 75 gold at the very best.
DM: (chuckles) "That is not going to work." She reaches out and takes the belt away from you and sets it back down on the inside.
Player: 75 gold will not do you for that, then?
DM: "For the belt, maybe."
Player: For the belt, obviously. We've already established that that's in the silver range and certainly not touching the gold.
DM: "Right, but you're willing to have and to offer that 75 gold for it, please."
Player: 75 gold for the entire set.
DM: "No, it's not going to work. I'm sorry."
