Because Guitar Hero is lots of fun and playing guitar is lots of work? It takes a lot of time to get good at playing an instrument; not only do you have to master the technical playing of the guitar but you also have to gain a rudimentary knowledge of music theory and musicianship.
Or you could just rock out to your favorite bands' songs with your friends.
Not everyone who plays Guitar Hero wants to become a guitar master.
Idle easier! http://www.sourceop.com/modules.php?name=Forums&file=viewtopic&t=1611
Because Guitar Hero is lots of fun and playing guitar is lots of work? It takes a lot of time to get good at playing an instrument; not only do you have to master the technical playing of the guitar but you also have to gain a rudimentary knowledge of music theory and musicianship. Or you could just rock out to your favorite bands' songs with your friends. Not everyone who plays Guitar Hero wants to become a guitar master.
But McDonald's is already patenting the sandwich! http://yro.slashdot.org/yro/08/11/25/0034229.shtml