Obviously, there are hundreds of different backpacks available to choose from. It’s not possible for you to examine all of them. (In fact, good salespeople and marketing professionals know that providing you with too many choices can be so overwhelming, you might not buy anything at all.) Consequently, you develop what’s called evaluative criteria to help you narrow down your choices.
Evaluative criteria are certain characteristics that are important to you such as the price of the backpack, the size, the number of compartments, and color. Some of these characteristics are more important than others. For example, the size of the backpack and the price might be more important to you than the color—unless, say, the color is hot pink and you hate pink.
Marketing professionals want to convince you that the evaluative criteria you are considering reflect the strengths of their products. For example, you might not have thought about the weight or durability of the backpack you want to buy. However, a backpack manufacturer such as Osprey might remind you through magazine ads, packaging information, and its Web site that you should pay attention to these features—features that happen to be key selling points of its backpacks.