Coke actually has some decent uses. First, in some therapies it can be used to aide weight loss if the given patient is morbidly obese. Second, its other compounds related to the coca plant are actually nutritious, that's why you see all those video caps of the Ecuador old ladies chewing on the stuff. The Incans also used it as a food staple as well, considering how arid parts of the Andes can get, it was a boon and not a bane. Third, stimulants will always have their uses. Some folks use it to be stupid, others use it to just have a little fun.
-- Bridget