Interesting. As luck would have it, I'm going to be in Colombia for 10 days next month.
How difficult is it to buy? (Any links/pointers to more details about a source?)
My Spanish is kinda OK but basic and rusty. And it's going to be VERY obvious that I'm a tourist to anyone who is paying any attention at all.
Still, if I'm right there (will be in several major cities)...