commercials just help the rock get rolling down the mtn - doritoes pretty much sell themselves - do you deny that humans, bugs and everything else alive tend to find the path of least resistance, that cheap and easy, however suspect the content might be, is awful damn tempting to a big old chunk of the population?
No, Doritoes do not sell themselves as the need for advertising shows. Without acculturation and massive advertising, people would resort to many types of food to address the needs that Doritoes are supposed to fulfill. Some of which would be nutritious, others not so much, but we wouldn't be facing a junkfood based obesity crisis.