Game shops in my country (Thailand) always import games from JP, NA, EU. So gamers in my country can buy any version that they want.
For me I always buy my favourtie game 2 version (JP, NA). But nowadays I don't have much time to play games as I had when i were in university. Now I have completed platinum trophy for KH -HD 1.5 ReMix- JP version, but i still haven't played US version for a single minute.