http://www.polyphony.co.jp/products/s02.html

Gran Turismo software shipments as of December 2006.

Gran Turismo 4
1.16 - (Japan)

2.63 - (North America)

4.87 - (Europe)
0.07 - (Asia)
0.06 - (S. Korea)

Gran Turismo 4 Prologue
0.79 - (Japan)

0.41 - (Europe)
0.11 - (Asia)
0.05 - (S. Korea)

Gran Turismo Concept
0.43 - (Japan)

1.00 - (Europe)
0.09 - (S. Korea)
0.04 - (Asia)

Gran Turismo 3 A-spec
1.89 - (Japan)

7.13 - (North America)

5.84 - (Europe)
0.01 - (Asia)

Gran Turismo 2
1.71 - (Japan)

3.96 - (North America)

3.68 - (Europe)
0.02 - (Asia)

Gran Turismo
2.55 - (Japan)

3.99 - (North America)

4.30 - (Europe)
0.01 - (Asia)

thank god of GT!!!

http://www.polyphony.co.jp/products/s02.html

Gran Turismo software shipments as of June 2007.

Gran Turismo 4
1.20 - (Japan)

2.69 - (North America)

5.18 - (Europe)
0.07 - (Asia)
0.07 - (S. Korea)

i dont quite understand this prologue business, are people buying an earlier version of the same game?

I dont either maybe is that the cars are the speed of need for speed, unlike GT5 i dunno.

I think prologue is the same exact game but not with all of the features plus it comes out earlier. Its basically a sneak peak of the game.

They are large markets...for the pirates!

And then they... sell it? No, I don't get it either  

South Korea is a huge market for some games. Certain PC games especially. World of Warcraft, Starcraft, Lineage, etc.

Until you've personally watched the Starcraft TV channel in Korea, you can't understand how big Starcraft is there.