Marketing Techniques

Many marketing and advertising techniques are used by the companies to promote their products in the market.People get happy when see some offers stating some free gifts or items with a product they purchase.Do the items that come as free are really worth?.The actual marketing technique is that the companies tend to push the sales of products that currently experience poor sales figure in the market.The products have poor sales figure because they did not have good reception among people.So the products got to be either of poor quality or not worth for the tagged price.So does the quality or Worth increase with because of the free items provided with these products. I think they don't.People can decide to buy such products if they come for cheap prices.