The most effective brand advertising, after all, does not try to convince you to make a choice, but rather to convince you that there is no choice—that Coca-Cola is the cola, that Camel is your cigarette, or that Harley-Davidson is the only motorcycle one would consider. It can succeed if it manages to make the brand part of your identity: One might feel the same loyalty to Miller the beer as a resident of Wisconsin feels to the state. True brand advertising is therefore an effort not so much to persuade as to convert. At its most successful, it creates a product cult, whose loyalists cannot be influenced by mere information: companies like Apple, Hermès, and Porsche are among those that have achieved this kind of immunity to competition, at least among their true believers.

Tim Wu, The Attention Merchants, loc. 273