With that in mind there are a couple things to consider here:
There are already several million people who own the Guitar on the PS2 and the 360, so I would say these two are more likely to sell in larger numbers than the other versions because it costs less, the PS2 in particular.
The Wii version is also 10 dollars cheaper than other versions with the Guitar, so it's more likely to pick up new customers, on top of the game appealing to the more casual audience on the Wii.
I would say the PS2 version will likely sell about 500k over what GH2 did on it, and the 360 will probably pick up another 250-350k over GH2 sales.
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Thanks for the info.
With that in mind there are a couple things to consider here:
There are already several million people who own the Guitar on the PS2 and the 360, so I would say these two are more likely to sell in larger numbers than the other versions because it costs less, the PS2 in particular.
The Wii version is also 10 dollars cheaper than other versions with the Guitar, so it's more likely to pick up new customers, on top of the game appealing to the more casual audience on the Wii.
I would say the PS2 version will likely sell about 500k over what GH2 did on it, and the 360 will probably pick up another 250-350k over GH2 sales.