I used to participate in National Novel Writing Month. I didn't always seek to write 50,000 words, but I did set other goals (revising a novel, focusing on a project, or writing every day). I liked the momentum of NaNo, and followed a lot of participants.
This year was a little different. I started thinking about it in October. I even logged into the National Novel Writing Month website and peeked at the forums. I had a project I wanted to get done, and then things got in the way.
The funny thing is, the things that got in the way were other writing projects that needed attention. Somewhere in the years since I took first notice of NaNoWriMo, it became a way of life.