Two years ago, I would have sworn that I'd never take a photo of a human. The idea of portrait photography repulsed me. The fabrication and complication of composing someone? No thanks. Mountains never needed to be posed.
One year ago I travelled across the country and knew only two people. I needed a way to step out of my comfort zone and meet some new faces. I found that the photo community in San Diego was much more supportive than in St. Louis. I attended my first portrait "meet-up" and never looked back.
There's a definite comfort in the human interaction during a photo shoot. There are new challenges that you have to overcome with your model, which make it that much more enjoyable when you finally get the photos copied over to your computer.