or, i have a short attention span. i will often get bored of my hobbies. I played sudoku obsessively for a month last year. Now I don't play at all really. I really wanted to try painting a few years ago, so I did all my research, bought some supplies, planned out some projects. I haven't touched the stuff yet.
this alone is proof that I adore photography. 6 months of taking at least one shot every day (and usually hundreds more), and I have yet to get sick of it, get bored, or want to quit.