I purchased my 2006 LE with 16k miles in 2008 for $21,500 from carmax. I felt like it was a square deal considering I was in and out in about an hour and didn't have to play games with the a stealership.
'93 SEV6 4x4, didn't pay a dime, when my car was stolen my dad gave me his old Pathfinder (when he got a new Durango to haul his new trailer around) with around 200K miles, now with just over 270K.