Buy the new one. With the financing options available, you can get a pretty low monthly payment and know that there you will not have to deal with any surprises. I'm also very nervous of that price you quoted for the used one. That is too cheap, so it makes me think there is something wrong with it. Honda's hold their value better then that, so I'm seeing a huge red flag. The other thing to think about is that this is going to be something you will have for at least ten years, maybe 20. The older one will require more work sooner then the brand new one. The gamble you are taking by spending less upfront is how long until you start to have to put money into the older one and how much will it cost?
While I've had both good and bad luck with buying used, I've NEVER regretted buying brand new or spending a little more for something better. I HAVE regretted those instances where I tried to save a buck. In every case, it would have been cheaper to have spent the money for what I really wanted up front instead of what I ended up buying.
Eddie