I bought the truck used with a 113k miles. I don't know about the previous owner's maintenance schedule since I bought it from a dealership, but they did a great job. I could not have asked for anything better designed for me (well maybe for better gas mileage, but it's a V-8, I wasn't expecting the gas mileage of an Echo!). I average 100 miles a day freeway driving and it still maintains 16-18 average MPG...
The seats are comfortable, the dash is easy on the eyes, there is plenty of space for whatever, and after replacing the 4 speakers in the doors, the Infinity sound system works awesome!
I have noticed the rust starting on the lower window seals on the back doors, and the liftgate has started a couple of rust patches on the underside of the door (not visible from the outside at all). I have read the comments on here and I'm knocking on wood, because my oil is maintaining a good level and the pressure is standing at little above 40. I will be checking the screen for sludge, replacing the water pump, and checking the tensioner to be on the safe side (thanks for the heads up Jay!).
This truck is the complete package. I can deal with the minor stuff, and it sounds like just maintenance... and when I feel like throwing a little money away, I just have to wind him out and Baby D is always ready for more. The power is incredible. 7 people (not kids, actual full size men), roof rack packed, and the trunk area filled with camping gear at 75 mph with cruise control and the A/C blowing like the arctic tundra, with still more than enough power just waiting to be used!
I plan on taking care of my truck in sickness and in health. To all you Durango lovers out there... Motor on!