Reincarnations and relaunches of taco-flavored Doritos, including the 2008 "Back By Popular Demand" campaign, were different from the original taco flavor (a sour cream flavor had been added to the recipe around 1985). The taco chips included in the Zesty Taco and Chipotle Ranch "Collisions" bags were thought by customers to be closer to the original, but were later discontinued in most of the United States. In late 2010, the taco flavor recipe that was used in the 1980s returned in a limited edition "retro" styled bag incorporating the original Doritos logo, and in early 2011 the company announced that this incarnation would remain in the permanent product line-up.