[shivan]

I think it really depends on your reasons for leaving.

There are people that leave because they are losers in their own country
There are people that are not losers, but dislike/hate their own country.
There are people that just want to try something new.
There are people that want to go to Japan because it contains their passion/fetish (usually hentai, manga or asian girls)

Or any combination of the above.

I it is up to everyone to figure out which one fits the best.