New 2012 or Used 2009

tpotter19

I'm getting a 370z this week and am torn between 2 different cars. New 2012 Sport, Touring with Navigation or a Used 2009 Sport w/o Nav with only 3500 miles on it. I obviously want the new vehicle, but there is about a $10,000 difference between the 2 cars. I would have to add an aftermarket nav unit to the 2009 and get some scratches fixed on it as well. This will narrow the price difference to about 7k. I know it's a personal decision but does anyone who already owns one have any input on what would make a 2012 with Nav/camera 7k better than the used one?

Thanks for the input and thoughts!