Guaranteed to help you ROCK! (not really)

https://gizmodo.com/5250190/logitech-wireless-guitar-controller-for-ps3ps2-hands-on

---I mean seriously. Cool game an all but people do realize it's not a real guitar right? I mean, who would spend $200 on a fake guitar? Sure, it's shiny and among the Guitar Hero guitars it's "A #1". But why not save that $ and evetually buy a real electric guitar? Something tells me if you sweet talk a lady into coming back to your place to listen to you play some tunes on your guitar, if you pull out this guitar, she's gonna do a front flip out of your window and dash away from your culdesac.

My friend has one of those. I went over to his place and found that it isn't much different than a normal guitar. Sure, it has buttons instead of strings, but it really teaches you how to play. Your reaction time increases and you know how to switch notes faster. It's not that bad. If you've got money to burn, buy this.