I just moved to Los Angeles from Tokyo, but i feel really homesick even though I know this is a great opportunity.  Have you been to Japan?
I have never been there, but I am sure it has to be exciting since it is the most populous  metro area in the world.
It is soooo exciting.  I am sure Los angeles is great too, but I do miss the hustle and bustle of Tokyo!
Population-wise, it should compare to Tokyo since it is the 2nd most populous city in the US.
Maybe I just haven't gone to the right places, or maybe it is a smaller area.  I don't know, maybe it's just me being home sick.
Probably homesick and nothing can equally compare to Tokyo. It is the seat of the Japanese Emperor and government.