I lived in tropical Thailand for 2 years (wife had a job there; now we live in Korea). And let me tell you, you'll get bored out of your mind sooner rather than later, and find yourself "sitting here on HN" more often than you'd like to admit.
Creative people live for the thrill of being "in the zone", utilizing their potential to the max. Tropical surroundings or "4 hour weeks" have surprisingly little to do with that.