Explain impact of social class on consumer buying behavior?

Almost every society has some form of social class structure. Social Classes are society's relatively permanent and ordered divisions whose members share similar values, interests, and behaviors. Social class is not determined by a single factor, such as income, but is measured as a combination of occupation, income, education, wealth, and other variables. In some social systems, members of different classes are reared for certain roles and cannot change their social positions. Marketers are interested in social class because people within a given social class tend to exhibit similar buying behavior. Social classes show distinct product and brand preferences in areas such as clothing, home furnishings, leisure activity, and automobiles.