I have a feeling that this game is going to sell a lot.
500,000 first week. Even if Rock Band is better than Guitar Hero, the Guitar Hero franchise is still very powerful and more popular, specially with casual gamers, and the DS install base is huge.
This game might the best selling game of June, right after MGS4.
Guitar Hero III Wii managed to sell almost 300,000 first week, with a lower install base than the DS, and a higher price










