It's fairly obvious that different photographic genres require different balances of the same visual/mechanical/mental/intuitional/whatever tools. I've always preferred inanimate subjects so I can take my time with the image. I respect the skill required for quick spur-of-the-moment photography but that doesn't suit my personality. Also, I can become impatient with what I'm photographing or decide it's not worth a frame of film and walk away from it without it becoming irritated or insulted.
ETA: I can also point my camera and stare at it unemotionally for hours without it becoming creeped out and throwing a rock at me for punching me in the face for invading its space. I bear or mountain lion might eat me though.