Today, with a significant increase in the number of producers for various goods, not only do buyers have difficulty choosing favourable products but also competition between producers to persuade consumers has been become hard and serious. Therefore advertisements play a key role in today’s marketing and so some people believe that power of advertisements is the major incentive for the market growth of buying popular consumer products and necessary needs of buyers is not very important. I agree with this opinion to some extent but I think the main reason for these increase of sale is people’s necessity, not advertisements.