Caples says companies often emphasize features when they should be emphasizing benefits. âThe most frequent reason for unsuccessful advertising is advertisers who are so full of their own accomplishments (the worldâs best seed!) that they forget to tell us why we should buy (the worldâs best lawn!).â An old advertising maxim says youâve got to spell out the benefit of the benefit. In other words, people donât buy quarter-inch drill bits. They buy quarter-inch holes so they can hang their childrenâs pictures.