When people come to your store, especially for a rare Pokemon, you can offer a discount, or free product for certain catches (say, a Pikachu caught gets you a free fountain drink).
Wakati watu kuja kuhifadhi yako, hasa kwa Pokemon nadra, unaweza kutoa punguzo, au, bure bidhaa kwa ajili ya upatikanaji wa samaki fulani (kusema, Pikachu hawakupata anapata bure kisima kunywa).