It's a fantasy role-playing game.

DM: You are Tiberius Stormwind, a dragonborn sorcerer . You are the member of the famous group of adventurers. Previously, The party share tales from their time apart. Vex, to great dismay, learns about the fate of the flying carpet.
DM: Okay. Blacksmithing is more for construction. The blacksmith there says, "Well, I mean, I can certainly make some for you, but there's already plenty of ready-made ones over at the general store across the way." And he points to a smaller building.
Player: I would like a quarterstaff, though, with bladed ends. It is why I came to you, sir.
DM: "All right." And the scruffy-chinned human rubs his half-beard and thinks it over. "I can probably fashion something. I can't tell you how wieldy it'll be, but we can certainly try. Give me about-- four hours, probably, with a ready-made quarterstaff?"
Player: Wonderful.
DM: "All right. For the custom, put you back about, say, 80 gold for the custom job."
Player: Wonderful.
DM: "You wanted a crossbow, you said. You want a heavy crossbow or--"
Player: Oh. What do you prefer? I'm a sorcerer, so I've got to keep it light.
DM: "Then you're probably going to go with a regular hand-crossbow. Go talk to that general store over there." And he sends you across the way. You head over to the general store. You purchase, base price for a hand-crossbow is 75 gold pieces, so mark that off.
