I bought my '02 Dodge Diesel 2500 brand new in 2002. It's still going strong (as you'd expect from at least the Cummins part). At this age, it still has <90K on the clock.
Just what I want to hear.
I'd buy new if I was buying a truck right now or slightly used. Used trucks are so expensive there's no point to buying used.
This is also true. When I was at one dealer they had a 3 year old diesel that wasn't even $5k less than a brand new one!
As far as myself, I am in the boat of people that buy and will run it till she falls apart. Picked up a 2012 Ram 2500 diesel last year, brand new, factory ordered, and intend on driving it until the wheels fall off. Residual value is great, not that I care for my purposes.
I also come from a long line of family that have done the same. So far between my father and grandfather, the shortest time they've kept a Ram (all bought new) has been 13 years . They keep them until they just about rust into a pile of dust, get a new one, then start all over again.
I fully intend on keeping that tradition. If I don't get at least 15 years out of my Ram, I'll be thoroughly disappointed. Getting into the million mile club with the CTD would be nice too.