I have the option to get a "used" 2011 2500 with 20k miles and all warranty or an 06 sport with 106k and lift/tires for $6000 less abouts. Which should I get? the payment on the 11 would stretch me I think but I would have all warranty and a long lasting truck that I know everything about. the 06 would be cheaper, already lifted, but higher miles and older. What do you guys think? this is my first ever truck purchase.