The purpose of the advertisement is not to inform you about the product and its features or to determine you to buy it right away. The purpose of the advertisement is to build an opinion and a brand image into the consumers’ minds.
Some of the marketing strategies are: appealing to people’s need to conform, promoting brand recognition and trust through repetitive exposure, influencing the attitude towards a product by manipulating the expectances, using celebrity endorsements, emphasizing the feelings associated with a product and not the product itself, etc.