It's not that they're lucky or that it's unfair. Tamagotchi is a Japanese product that has originated there, and Bandai US/UK just happens to not see the reason to import the color versions to the west because they don't see it being profitable as of yet. Even if about 300 people from our western tama community told them they do want a color version, its still not enough to make an inpact.
Also, we did have connecting ("bump") stations for the Friends, at least there were some in Europe, maybe US too. And Japan didn't get these nor the Friends version at all, so I think it's fair.
As for moving to Japan, it's not that easy as you probably know. They don't really allow immigrants as is, you need either a working or a student visa to "live" there (plus they ONLY accept university degrees, not college degrees), but as moving goes, it's a long stretch. And it's not as colorful as some people might think, "outsiders" aren't treated... the best in there, and it's a very expensive country. But if you have a chance and it's your dream, definitely take it! Just remember that tamas is not everything that's there.