*(Front) "Credits will do fine," offers Qui-gon, waving his hand with Jedi grace. But Watto has other ideas about payment. "I'm a Toydarian. Mind tricks don't work on me - only money. No money. No parts. No deal." Watto does indeed have a useable hyperdrive generator, but Republic currency is of no use on Tatooine. Qui-Gon has nothing else of value and is forced to find some other way to pay the wilyl junk dealer.
Watto considers dealing with Qui-Gon, a Jedi in farmer's clothing. *Source: Back of card