Prediction: CODIV and GTAIV will sell at least 12 million lifetime.

[Squilliam]

Rock_on_2008 said:

Skeeuk said:
for some reason i dont think gta4 will sell more than gta andreas
and regarding cod4, if it retains the modern theme it will do extremly well but if it reverts to ww2 theme, although it will do well, it wont sell as much compared to cod4

still will be interesting to see how these games pan out

 GTA andreas was sold on the PS2, when the PS2 had a user base of over 70 million.

GTA IV launched on a combined user base of only 30 million. hmmmm. 

I wouldnt be surprised if both consoles sold 18 million combined before the end of the year. At 20% attach rate that would give almost 4 million extra sales.