I made some Chilean friends in Ecuador. One is a grower himself and showed me some beautiful plants he grew (Dinafem - Moby Dick) under a 400w HPS. I plan to see him in a few months and hopefully share a joint or five!
He informed me that gringo prices are no less than $15 USD per gram. So expect to pay up if you're not from SA. Hell, you may have already been on your trip. If so, how about a heads up for other travelers?