Im shocked no one has said this yet.....
I love photography because im good at it
no in all seriousness we naturally love things we have a knack for. Thus I love photography
obviously there are other reasons...... (some of which involve my other passions like for example bugs. Photography enables me to get an entirely impossible view of them in all their glory with detail our eyes could never pick up.)
I am not part of the group who thinks their photographs are a form of art, I don't believe any of my shots are. I Still love this overly expensive hobby though!!