I was browsing a few impressive videos of young people playing both of these games when I noticed a trend. It never fails that some know-it-all chips in his two cent comment like "That sucks man, play that on a real guitar" and adding that they hate it when some kid thinks that it's like playing a real guitar.
The only people I ever see making a comparison between Guitar Hero or Rock Band and a real guitar or drum kit is the so-called "real" musicians who hate the game.
Here's a particularly pissed off individual, quoted straught from a YouTube video (spelling & grammar errors included) of Eddie Van Halen's live "Eruption":
"It fuckin pisses me off,kids go into the guitar shops while youre playing a real guitar,and theyre like,yeah,I can play that...on guitar hero,its easy.and they think theyre real bad asses.Guitar Hero has to be one of the worst inventions ever."Good grief, does that really matter? It's apples and oranges.
I'm sure there are probably a few kids who think that it's like the real thing, but so what? If it gets them interested in music, maybe one day they'll take interest in learning a real instrument?
I've heard some say that these games are nothing more than a glorified "Simon" game. Hate to break it to you, but they're more difficult than Simon. There's more coordination needed to play. It's not as simple as just pressing a coloured button when it flashes. There's timing involved in pressing the button and hitting the strum bar. You have to be in sync with the notes. You need to get a feel for the rhythm and the beat to play the game well.
If you're one of these haters, keep your hate to yourself. Don't slam anyone who likes the game. You've got nothing to fear. You may or may not realize this, but these games are designed created by REAL musicians. People who can play real instruments, AND play the game well.
Maybe that's why you hate the game. Because you can't do both?