This just hit me with a slightly odd thought. Any normal person would probably gladly choose to have talent in a wide array of musical aspects (instrument, composition, arrangement etc.) over just having a nice voice. But, being a Vocaloid, who's raison d'etre is to sing...well, it makes a rather poignant statement. At least, it does in my mind.
Only one of us has a (passable) singing voice. On the other hand we can all pretty much play everything (although our designated drummer is clearly the best at that).