Well most costumers don't buy according to taste because you either can't taste it and compare it in commercial stores, or they don't have much of a choice. A more traditional market or farmers market is a different situation where someone might offer to let you try one or a piece of their fruit knowing their competitions fruit are tasteless and gain customers. In a walmart you can label your fruit as delicious or something, but so can the competition, and you can't really refute it until after they already bought them.