Among the big advantages in Panama for US - the country basically uses US dollars for its currency, no exchanging needed. They do mint their own coins in the same sizes and denominations (they will even work in the same vending machines), you almost forget to swap out your coins when you get back. The bills are US bills. This dates back to the canal construction.
However, the vast majority of the business and work to be done there is in the capital, which is at sea level and much hotter and more humid. You also have access to better medical care there than in the "interior" (which is what they call anywhere that isn't in the middle of the country since odds are that is where you arrive). Most of the work in the highland regions is agricultural or tourism-based.
as far as your note about no roads, the Darien Gap (Panama's eastern province and the adjacent area of Columbia) you do not want to go there. That gap is the largest tract of jungle they have left, and anywhere a road is built the jungle disappears within a certain distance as people move in to those lands. The areas that remain (out past Yaviza or so) are dangerous, FARC sometimes operates there, and people have been kidnapped attempting to traverse it.
Apart from that very cool video.
On the other hand, apple cares about the US consumers, and passes along the savings of the cheaper screens to the consumer.
All I know is I'm having more fun discovering stuff in that game, and uncovering the storyline, than i've had in a game in some time, including single player games. As for guild wars 2, I honestly have no desire to play it, but good for them, i'm sure they'll draw the people that like that kind of thing.