I have a solution to three of your problems regarding Guitar Hero III on the Wii, they are:
1. Only has mono sound at the moment
2. No DLC at the moment.
3. Wanting another GH game to play more songs from.
Solutions to all 3, buy a 360 and the 360 version of GH3.
1. Full surround sound
2. All the DLC you can shake a stick at
3. Guitar Hero II is available on the 360 aswell.
I hope you have enjoyed this community service announcement from the Oceanic team.
1. Only has mono sound at the moment
2. No DLC at the moment.
3. Wanting another GH game to play more songs from.
Solutions to all 3, buy a 360 and the 360 version of GH3.
1. Full surround sound
2. All the DLC you can shake a stick at
3. Guitar Hero II is available on the 360 aswell.
I hope you have enjoyed this community service announcement from the Oceanic team.