I've had good luck with my 2006 F-150 that I purchased from the local dealer 3.5 years ago. The truck had 61,000 miles but was a "Certified Pre Owned" and as such came with a 100,000 mile 6 year power train warranty. I assume GM and Dodge offer similar programs.
Before Ford will designate a vehicle as Cert Pre Owned they go through it thoroughly replacing every hose, belt, all fluids etc., and not every vehicle qualifies. I would not hesitate to shop for a Cert Pre Owned again.
2012 Nexus Phantom 23P Class C
Ford E-350 Chassis 6.8L V-10 w/5 speed trans w/tow haul mode, 55 gal fuel tank
USCG Licensed Master 100 Ton (Retired)