My Super-power Theory

If you chose invisibility: The things you do with your invisibility powers are things you wish you could do in real life, but aren't able to.

If you chose flight: The things you do flying are things you see yourself doing anyway regardless of your superpowers, but now they are accomplished much faster.

For those of you who have heard This American Life's show on Superpowers, this is a different version of their theory.