Me? I love to start out on top. I always try to hit above and beyond the 1600 word count you need to reach exactly 50k in 30 days. If I can reach 5k on day one, I feel like I've set myself up for success.
The only problem is ensuring I have enough to go on to reach my goal, not just of 50k words in a month, but of finishing an entire novel. If you consider that the Hobbit, a respectably lengthened book, is around 93k words, and most novels require you to cut 10 or 20 percent of what you initially wrote, the goal for a first draft my be closer to 110k or 120k words. That's two NaNoWriMos and a couple weeks tacked on the end. (this may not be the best way to look at it, but it's how my mind views it)
This is why I want to accomplish more words, but I find myself with great ideas that lack details. I know how I want to start the book. I know how I want to end the book. I know several characters and locals that are important throughout the book. Where I struggle, as I race against the daily word count clock, is connecting the dots I have with details I didn't think to think of.
This is not a complaint, but the acknowledgement of the challenge before me. I challenge I haven't been great at meeting. I have reached 50k two years in a row, but found myself stalled out shortly after, unsure of direction, and no longer with the accountability of the NaNoWriMo status bar.
Here is to making this year different. I will be out of town the first week in November, and the third week in November, so I hope that limits my distractions, and increases focus. Best of luck to everyone else participating, and also to those who are not, but desire to write a novel.