Amber wrote:...and I just love playing on fisher price plastic guitars

That how I always refer to them! Either that or Playskool. Great minds...
I also enjoy the music rhythm games, such as Guitar Hero and Rock Band (I've enjoyed RB more as of late), and one must consider these two important facts:
1) Not everyone is proficient or attentive when you put a real instrument in their hands. But...
2) ...give them a simple control scheme, some songs they recognize, and some friends and you've got yourself a make-shift living room band. Not much hassle, not much time to master, not much money to invest. Perfect formula for the average joe.
A nice way to unwind...and for the un-musical out there, it is a nice alternative to stumbling around on an expensive instrument they're not all that good at. Also, lets face it...if everyone who played Rock Band or Guitar Hero played their plastic instrument's real counterpart, the world would be flooded with lame excuses for so-called "musicians" who think BC Rich guitars are the best ever simply because they "look cool." I say this is just a new example of Darwinism...weeding out those not in it for the love of music, and shedding light on the true musicians who are serious about their skills.