The Military-
I am in the United States Marine Corp Res. ( I am a senior Finance Major at a University)
I know for a fact that about 50,000 Marines are based in Okinawa Japan at any given time, there are also severval major Naval Bases in Mainland Japan and a couple of Medium sized bases there. I would estimate that there are around 110,000 US military personel in Japan at any given time.
Another thing about military guys is that they get there paycheck and since their housing and food and utilities are covered they have fun with almost their entire pay. It is not uncommon for people to get a paycheck go to the PX and spend half of it. So basically Marines buy alot of luxury items, especially videogames.
The X360 is by far the most popular console in the military(FPS Games, Duh...) followed by PS3, then Wii ( I have to deal with people joking about me playing with my Wii all the time )
All of this to point out that as bad as 360 sales are in the land of the rising son, the US military could very well be account for as much as 20-30% of total sales.
One thing to remember is that Military duty station deploymenta(at least in the USMC) last 2 year, always. And also Marines would be more likely to buy those types of items when they are lonely on the other side of the globe. Also a smart person would buy any thing of great value overseas if they went, There are no taxes to be paid when deployed outside of US soil (That is one of the reason you can make so much money if you go to Iraq, of course in addition to seperation and danger pay)- Last summer I went for AT for 2 weeks in Japan and many people in my unit made their purchases of expensive electronics while we were there for that reason.
Anyways, imput would be enjoyed
psn- tokila
add me, the more the merrier.