I contemplated going down this road when Rock Band was all the rage a few years ago. Some bars in my area even had "Guitar Hero Night", etc, but they didn't last long and were poorly attended.
I decided not to do it based on a few things.
- While Karaoke can be a spectator sport, I don't think the games are. They are fun if you are the one playing, but pretty boring if you are just watching a stranger play. Especially a beginner. It would be like trying to host a pinball, beer pong or dart tournament on stage.
- Monitors. Unless you want your "band" facing the projection wall with backs to the crowd, you need a monitor for every musician so they can face the people and act out their rock star fantasy. Even then they would need to be big. Have you ever tried to play RB/GH drums on a 17" monitor from a distance?
- Song selection. You have 40,000+ karaoke songs of all genres. How many GH/RB? A few hundred? The selection is very narrow and appeals to a specific demo.
- The equipment is fragile. The stock drums especially. We know people don't treat our equipment as their own and it's pro-gear meant to handle some abuse. A plastic guitar is just asking to be swung around & dropped, and it only takes once or twice. My kids broke their share, and they weren't drinking!
- It doesn't seem like something that needs hosting. If a bar wanted to hook up the Wii (as many do) on a Monday night that's one thing, but trying to get someone to hire me to hook up an Xbox so I can assist people in playing a game seemed like a stretch.
Don't get me wrong, I'm a gamer and
love them in my living room, but I don't think they translate well over to the karaoke stage.