Personally if the deal feels good when you spoke with the individual I dont think you can really go wrong.
I just picked up a 2004 myself here in Denver and I got it for $1,100. The thing was in pristine condition and the owner of it was very nice. I even picked it over a 2003 version that was in just as good condition that was $100 less. The owners of both bikes were very nice but in the end going for a year newer was the better deal.
You can't really go wrong with these babies as you can upgrade them so much it's scary!
When I originally lived in Madison, WI the owner of the local scooter shop turned me on to them and said the Super 9 was probably the best all around for the money scooter in the Kymco lineup for what all you could do with it.
Yes there were other scooters and the Kymco line is just amazing with build, quality, and performance. But Im a larger (taller) guy and the Super 9 is so versitaile for what you can do with it.
Ross