I've always needed a creative outlet. When I was younger, that was writing, gradually that transitioned into poetry (as much as anything my 13 year old self wrote could be called 'poetry'), then design and, for the past 6 years or so, photography. While I love most forms of photography, portraiture has always held a special place in my work. As clichéd as it may sound, one of the main reasons I've enjoyed portraiture, and specifically fine art, fashion, and conceptual work, is the weight towards making a photo rather than simply taking one. Injecting our beliefs, experiences and views into our art makes it infinitely satisfying, and means one can create something truly unique and know that if it goes right, it's because we did everything, not because the light saved us or because we found something really cool to shoot; it's because we made something really cool.
Maybe it's just that I'm too much of a night owl to get up in the mornings to shoot landscapes.