Guitars and Rock...

Is it just me or has there been an explosion in guitar related games?
I know of this Guitar Hero one, and countless others, which would've been fine, if they hadn't all came up in two year time span.
I mean seriously, instead of spending all that money on a toy guitar and CD, you can buy a real one and go crazy with it. At least sequels and expansion packs for it won't come out every couple of hours for you to buy. I suppose this is some way to allow people to fantasize that they are rock stars, without doing any real work. I mean seriously those games are right there with all those countless stupid sport simulators that come out several times a day with even more realistic moles on the athlete's faces (I bet in a couple of years we will actually get hair on them[on the moles that is], realistically moving according to wind direction). I mean why stay in front of the TV/computer and ruin your small joints and eyes, when you can go outside in the clean and ruin your ankles and knees? Right? Well why stand in front of the computer/TV wasting your life pretending to be a rock star, instead of wasting your life trying to be one?
I mean seriously, if this was simply stupid, and I was in the mood, I would gladly make a list of games that would probably be picked up. Imagine this: A highly addictive school simulator! In fact so addictive, that you'd ditch school to play it! Imagine the humor generated by that! (Note this is not irony, as it is not humor generated by a discrepancy between judgment and reality.)