But I wouldn't miss doing NaNoWriMo and I'd like to help you make your decision. When I joined up last year it was at the end of October so I had no time to pre-plan but that didn't matter in the end.
Here is some advice that I was given when I was starting out that I think is timely advice if you're struggling with indecision:
2) Do not edit as you go. Editing is for December. Think of November as an experiment in pure output. Even if it's hard at first, leave ugly prose and poorly written passages on the page to be cleaned up later. Your inner editor will be very grumpy about this, but your inner editor is a nitpicky jerk who foolishly believes that it is possible to write a brilliant first draft if you write it slowly enough. It isn't. Every book you've ever loved started out as a beautifully flawed first draft. In November, embrace imperfection and see where it takes you.
3) Tell everyone you know that you're writing a novel in November. This will pay big dividends in Week Two, when the only thing keeping you from quitting is the fear of looking pathetic in front of all the people who've had to hear about your novel for the past month. Seriously. Email them now about your awesome new book. The looming spectre of personal humiliation is a very reliable muse.
4) There will be times you'll want to quit during November. This is okay. Everyone who wins NaNoWriMo wanted to quit at some point in November. Stick it out. See it through. Week Two can be hard. Week Three is much better. Week Four will make you want to yodel.
And we're talking the good kind of yodelling here.
5) Ignore or adjust the above points to suit your style. I find it seriously upsetting to ignore ugly prose and typos as I write, so I don't adhere slavishly to this advice. I do understand the psychology of it.
Okay, so now after the little pep talk, if you decide to sign up, buddy up with me and all your other blogging friends. There’s a great support system out there. Once you join your region you’ll see there’s so much work being done for you – on planning your outline, plotting, characterisation, even research.
There's also bloggers with planning helpers in progress - I'm using http://dawnembers.blogspot.com for some great tips. WriteOnCon has heaps of stuff too.
PS My region (Brisbane) is having its Kick Off Party BBQ at Roma Street Parklands on October 31st, so if you live in/around Brissie come along! Then there'll be write-ins each week, giveaways, support...how can you resist?