The Xbox 360 has just launched in Japan, and so far it is not selling too well. Once Microsoft releases some of their big Japanese games (like the 2 year old Final Fantasy XI), perhaps Japanese gamers will like the 360.
I just realized, Final Fantasy XI is 2 years old, and it is being re-released on a next-gen console... If I remember correctly, FFIX sold terribly on the PS2 and PC, so why would anyone want to buy it for an Xbox 360?