A recent UN report indicated that the amount of agricultural land in Colombia used for coca crops, the raw material for cocaine, has hit an all-time high. I visited Cartagena, Colombia last year and can tell you first hand that it was easier to locate cocaine in Colombia than it is locating a Starbucks in Manhattan. They saw me coming from a mile away. Gram for gram, cocaine remains the most expensive commonly used illegal drug in the world, with New Zealand and Australia topping the charts with $237 and $218 per gram, respectively. In Colombia, they pay as little as $6 per gram.