Buying a 2009 Adventure Island vs 2010 AI

I've read some of the posts here about the changes in the 2010 vs the 2009 AI. I now have the opportunity to exchange the 'new in the box'" 2009 AI that my wife got me for Christmas for an 2010 AI for a 5% upcharge. Besides having the improved seat, the Turbo fins and the better drain plug is there anything else that people have discovered on the 2010 that would make it well worth the 5% price difference? Or for that matter, anything better on the 2009? Opinions? Thanks.