@ Neos
More impressive games can also translate into more sales. A GTA V could sell less if the game does not go significantly beyond what was already achieved in GTA IV, GTA made huge technical progress from GTA to GTA II to GTA III and GTA IV.
Developing GTA IV on the 360 made sense as the PS3 dev system was still lagging behind at the time they started, we have seen with games like Oblvion this approach can lead to faster results.







