Wii GH3 outselling PS2 GH3?

[BenKenobi88]

rocketpig said:
I'm actually surprised that GH3 isn't doing better on the Wii. Considering the Wii demographic and the fact that PS3 & 360 owners might be holding out for Rock Band, I thought more Wii owners would jump on GH3 since they don't have another music-related game coming any time soon.

 I'd buy it soon if I hadn't heard about the mono-only sound (not a huge deal, as both I and my friends just use the TV stereo speakers, but still), and the supposed lack of quick play multiplayer...only career multiplayer...I'm confused and nobody seems to tell me what the modes really are. 

Also, the lack of extra guitars for Wii and PS3 undoubtedly slow down sales...I'm not going to buy GH3 if there aren't extra guitars for sale...maybe eBay can help in that regard, but that's lame.