I collect creative outlets.
I am also working on my "jack of all trades" Merit Badge.
I'm the same way. Since high school I've wandered between FPS mapmaking, electronic music, 3d graphic design, and now photography.
I've always had a creative itch that I needed to scratch, and I love photography for the instant gratification of creating something. with music, you have to spend days coming up with even a decent melody, and then spend months tweaking and massaging the sound. In 3d design, I work far too slowly to derive any instant pleasure out of the process. but in photography, every once in a while an image just pops by itself.
It's a nice feeling, and terribly addictive.