I used to think they both went hand in hand, but it's pretty obvious that from an industry standpoint they are mutually exclusive.
There seem to be two pretty distinct types of musicians; ones that love creating music, and ones that love performing. I'm not suggesting that one is better or worse than the other, but it'd be interesting to see what types we have here. I feel it will be strongly skewed to the creativity, but you never know.
Creativity for me. No real interest in performing.