Playing Guitar hero will only teach you how to hit colors when they come sliding at you. Its a combination of two very old games. Simon Says & Tempest. Thats all!
There is a little more to playing Guitar that slapping away at a Flipper and hitting color coded buttons. I own a Real Guitar and I cannot play it. I have tried, many times and it is just too complicated... not to mention I have absolutely no musical talent whatsoever.
I think that things like Guitar hero is teaching our youth to be Retards! Slap at this and poke at that and make some grunting noises and stick out your tongue and you will be a Rock-Star. No, you wont. You are still a geek.
The sad thing is that for eons guys have been getting prime pussy by playing guitar. Guys that would NEVER get laid in the regular world accept for the fact that they know how to make the guitar do the work for them. They hit that extra nasty note at the end of their guitar solo and the fucking panties go flying off! But now every dork with a Playstation can get the same effect from the girl next door by slapping away at a tiny plastic guitar in their living-room.
Now you watch this video and listen to the awesome talent and look at Eddies Face, and you tell me if this guy would ever get laid if it wasn't for his God-like Guitar Skills?
Or watch this guy (Andy McKee) and tell me if you think you could master skills like this with that little plastic piece of shit guitar?
You can slap away at that thing all night long and you will never be a Guitar Hero...
You are still just a Nerd with a Video Game.
So if you love Guitar then pick up a real one and lean how to play... just please don't play that whiny-rock that everyone is playing today.

