So you need something. Maybe you need your equipment repaired, maybe life will become so much easier if you have a certain piece of equipment, maybe you need the next item in a Chain of Deals or perhaps you're outright looking for the next Plot Coupon. After much effort you track down the only source of this rare good or service (or perhaps try and fail to procure it from other sources) ready for yet another quest or to pay through the nose in exchange...and they're astounded you're so desperate to get your hands on something so easy to get hold of. Occasionally the trope is downplayed, with the item in question being hard to obtain, but granting a high yield (for example a rare ore which you can dig up tonnes of after finding your way to an isolated mine) or something minor compared to th