Well, you see 1 instrument you play is dull to us right? Why not be extraordinary and play 3!! Everyone will love u!
I play the alto and baritone saxophone........and i can play other stuff.......just not as well........!!
learning 1 instrument is alot better imo, if you get good enough you won't sound 'boring', while playing 2 or 3 or more will just mean you will be 'boring' for alot longer on them before you get good.
if i'm not so busy, i'll take a violin lesson because its the only instrument that i can afford..... (piano is expensive >.>)