I have only one probelm with the guitar: nearly everyone plays it, and never moves on.

Not that it is bad to play the guitar, it is a versitil insterment, but I know many people who play it. Probably as many guitar players as all other stringed insterments compined (excepting the piano) So yes, learn the guitar, I won't hold it against you. Do everyone a favor though, and learn something for varity