On November 5, 2017 I purchased a like new 2014 F-350 SD Power Stroke 4x4 SRW. It's a Lariat Crew Cab Long Box with 32,300 miles on the odometer. The truck was a trade in at a Toyota dealership. Turns out I know the previous/first owner and was able to get all the service records. The truck was traded in only because he and his family had moved into town and most of their driving is now short trips.
Option:
FX4 Package
Spray in bed liner
Tow package with air bags & Rancho off road shocks
Gooseneck hitch installed
Fixed running boards
Fuel wheels w/Toyo tires
Leather seats
Heated front seats
Power seats
Power adjust side mirrors
Heated mirrors
Power slide rear window
Heated rear window
Power adjust pedals
Sony premium sound but no navigation
Back up camera
Drop down DVD player
Step tail gate
Privacy glass
Power door locks
Keyless entry
Remote start
I looked for over a year before I made the purchase. The dealer gave the previous owner $44,000 for the trade in value (I asked the previous owner) and was originally asking $52,000. I purchased the truck for $46,500. The 36K bumper to bumper warranty has expired but the power train, restraint, corrosion and power stroke warranties remain. I also get free truck washes at the dealership for life and I have 3 miles of gravel road to get to my house and we get a fair amount of snow.
I noticed a rattle in the front end which sounded to me like a loose shock absorber and that's what it ended up being. Looks like the lower left side front shock bolt had been cross threaded from the factory so the shock was able to move inside the mount and egged out the bracket. It's repaired now. Makes it nice when your neighbor has a well equipped shop with about every fab tool you can imagine!
As I said I looked for over a year mostly because I wasn't ready to buy and like you wanted to learn the market and what was a good deal. I looked at another 2014 very simular to mine but it had 98,000 miles on it though it had been deleted. It was out of Canada so corrosion was a concern. I made my decision largely because of the low millage and that I know the history of the truck.The power of the 6.7L stock/undeleted is amazing but deleted makes one feel like a kid again. I plan on keeping my truck for a long, long time and will likely have it deleted at some point, mostly for longevity; oh and the power.
My advice...do your research, get a carfax and service records if you can, decide what you're looking for and your budget before you shop, line up any financing before you shop, don't buy a third party extended warranty from a dealer and keep your emotions out of it.
Good luck and happy shopping.