@apujanata, To elaborate a little bit more on my statement "sales should be below 1 Million" : My own prediction, using assumption of Rock Band 2 Wii release on Dec 20, 2008 (latest possible release date, IMO) : Rock Band Wii release date is Jun 22, so only 2 weeks sales are included in NPD June : Jun 08 : 237 - 296K (I assumed it is as popular on Wii as it is on X360. Note that 296K is X360 ver Nov 07 sales, which are higher than normal, hence the 237K, which is 80% of 296K) Jul 08 : 118 - 236K (assume drop off between 50% to 20%) Aug - Dec : 431K - 860K (Slight decrease of monthly sales, using value of 20% / month, offset by 50% increase in Nov and another 20% increase in Dec 08, because Dec was affected by Rock Band 2 Wii. Didn't take into consideration the fact taht Sep is a 5 week month).
Total GLS just from US : 787K - 1.4 Million. IMO, it will fall nearer to 787K than 1.4 Million. I didn't put Japan and Europe into calculation, since I don't think it is guaranteed that it will see Europe or Japan release before release of Rock Band 2 Wii. If anyone else has information regarding europe and Japan release date, please share them :).
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To elaborate a little bit more on my statement "sales should be below 1 Million" :
My own prediction, using assumption of Rock Band 2 Wii release on Dec 20, 2008 (latest possible release date, IMO) :
Rock Band Wii release date is Jun 22, so only 2 weeks sales are included in NPD June :
Jun 08 : 237 - 296K (I assumed it is as popular on Wii as it is on X360. Note that 296K is X360 ver Nov 07 sales, which are higher than normal, hence the 237K, which is 80% of 296K)
Jul 08 : 118 - 236K (assume drop off between 50% to 20%)
Aug - Dec : 431K - 860K (Slight decrease of monthly sales, using value of 20% / month, offset by 50% increase in Nov and another 20% increase in Dec 08, because Dec was affected by Rock Band 2 Wii. Didn't take into consideration the fact taht Sep is a 5 week month).
Total GLS just from US : 787K - 1.4 Million. IMO, it will fall nearer to 787K than 1.4 Million. I didn't put Japan and Europe into calculation, since I don't think it is guaranteed that it will see Europe or Japan release before release of Rock Band 2 Wii. If anyone else has information regarding europe and Japan release date, please share them :).