I just remembered a news story on TV! Okay, they are putting less game play/graphics so that you beat the game in a couple of hours and go out and buy more games! They do that to make more money.
Although, some companies are generous and they want you to have the ultimate experience in gaming (i.e. Oblivion, Jade Empire, etc.) Those companies want you to be blown away by the graphics and game play, that you would buy more games from that company.
It's just mostly economics.





