pretty fantastic pics. You know, i lived in Thailand for over a decade and never saw a magosteen anywhere but in a market. It used to be one of my favorite fruits as well but then one day I was opening them with my teeth and a centipede that was living inside the fruit jumped on my face. I've been a bit traumatized by that.
I think if a bug jumped on my face I would never eat a mangosteen again hahaha. To be honest mangosteen trees are not easily found and I don't really know where they grow as a main source of income. But we saw many on that hike! Thats great that you lived in Thailand so long - where did you like the best?