Once you've invested hundreds of hours in creating a coherent universe, your story's grown to around a half-million words and can't be written as anything less than a trilogy.
“My body's feeling it a little bit. But one good thing, my back is in good shape, and that's my main concern. I know that my legs are going to take awhile to get back to where I was a few years ago, but as long as my back is solid, I feel that I can play many years.”