Guitar vs. Piano

I just found a very interesting article at ezinearticles.com that gives reasons why the guitar is the most important instrument, and why it's better than the piano. Me, being the amazing person that I am, already know how to play the piano, and therefore feel kinda prejudiced towards this article, but I must agree that it makes a lot of sense. It says that the guitar is much more affordable, maintainable, and easier to transport. The one part about this article that I vehemetly disagree with is when it states that guitars have the most influential part in just about all music. This might've been true like, 10, 20 years ago, but now, guitars are becomming kinda cliche. I value your opinion though, so if you disagree, please coment.