The reason of buying, possibly is the most challenging concept in marketing deals with understanding why buyers do what they do (or don’t do). But such knowledge is critical for marketers since having a strong understanding of buyer behavior will help shed light on what is important to the customer and also suggest the important influences on customer decisionmaking. Using this information, marketers can create marketing programs that they believe will be of interest to customers. Understanding and anticipating buyers’ behavior, merchants can orientate their promoting actions much more easily in the sense of sale raising. A good market researcher will study the thought process undergone by consumers, compare it with their demographic data, and use the resulting information to market their products.