Currently, CoD3, developed by Treyarch, costs about 168 DKP. Since CoD4 is (1) developed by Infinity Ward, the makers of CoD and CoD2 (which I think is better than CoD3), and (2) is treading new ground instead of staying in WWII. Both of these reasons can attract 360 owners. So I think that CoD4 for the 360 should sell at least 2M copies.
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