Promotional pricing, however, can have adverse effects. Used too frequently and copied by competitors, price promotions can create "deal-prone" customers who wait until brands go on sale before buying them. Or, constantly reduced prices can erode a brand's value in the eyes of customers. Marketers sometimes become addicted to promotional pricing, especially in difficult economic times. They use price promotions as a quick fix instead of sweating through the difficult process of developing effective longer-term strategies for building their brands. But companies must be careful to balance short-term sales incentives against long-term brand building. One analyst advises.