Japan matters to a lot of us, as not all of us enjoy Halo, Grand Theft Auto or Dungeons & Dragons. Speaking for myself, 90% of my console game collection is Japanese.
Edit : Oh, and you aren't right 90% of the time outside of your own biased perspective.
1) I am going based on worldwide trends and total sales. And D&D? They still make those? Well, 0% of my collection is Japanese, I have a game made in Europe. Mostly american. If you look at games they don't impact us as much as they used to.
2) Saying I'm wrong doesn't mean I am. ;)
Predicting the Future - 360 Will get to 11 Million in the USA this year!!
Predicting the Future - Wii will NOT win this gen in America!!
Prediciting the Future - The PS3 will pass the Wii by 2009!!