"Living in another country is way, way different from going on a vacation in another country"

Can't emphasize this enough. If you love traveling, emigrating somewhere may not be a great idea. Moved to the US from the UK a few years ago, and when I get vacation time I tend to use it to go back to visit friends and family.

That said, I made the move with a wife and child in tow, so it can be done - but obviously needs considerable thought and a strong partnership to make it work.