Gran Turismo 5 Why the most selling game of PS3

According to facts and Figures the Gran Turismo 5 is the most selling game on PS3, the proves are the reports from wiki and http://www.listal.com/list/bestselling-ps3-games (listal), the game like call of duty and Uncharted 2: Among Thieve, were the best selling game how this Gran Turismo 5 beat all of them even they are more popular game.

while having look on another report, Sales figures for Gran Turismo 5 have finally been released, and as usual Polyphony Digital has hit an ace in the hole. By the end of December, the title has already managed to sell over 6.37 million units worldwide. While numbers in North America were well over one-million, Europeans seem to have eaten the game up with a total nearing four-million. Also, in less than two months Gran Turismo 5 has already managed to move more copies than Gran Turismo 5: Prologue, making GT5 the new driving king of the PS3.