It is out the entire month, as opposed to the two weeks it got in November. Holiday sales pick up in December and people who buy a PS3 might buy this also. Word of mouth could have spread during the holiday season, prompting more people to pick the game up. CoD4 for the PS3 sold well, so it show that the PS3 still has potential to produce a game that can sell well. People might think that holiday sales for this game will grow during December instead of trailing off.
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It is out the entire month, as opposed to the two weeks it got in November. Holiday sales pick up in December and people who buy a PS3 might buy this also. Word of mouth could have spread during the holiday season, prompting more people to pick the game up. CoD4 for the PS3 sold well, so it show that the PS3 still has potential to produce a game that can sell well. People might think that holiday sales for this game will grow during December instead of trailing off.