2012 ski doo summit or 2013 summit?

Nov 1, 2009
Looking to upgrade what I ride. Have the chance to buy a 2012 ski doo summit 800 with 163 inch track with only 70 miles on it for 8000 dollars. But I don't know what to do cause I like the idea with the t motion on the 2013. Just need help on deciding if the t motion and flex edge track are worth the extra money.
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