I have had several by PCP, in fact I'm in the process of getting another new car end of this month.
I have always re-traded in for a new one, or as with this car, and my last PCP at end of the contract, I have purchased it and sold on.
My current car my friend has bought off me, she's got a bargain as low mileage, full service history and brilliant condition.
The garage like most px would make a good profit on resale.
New cars do loose money but, I personally think I haven't lost that much and enjoy a new car every 3 or 4 years. Its not the satisfaction of having a new registration (which some folk like) as I have my own plates.
All you need is a service when the car tells you.
There are some excellent used cars, in the market but of you really want new this is the cheapest option.
I am sure you will get lots of thoughts on this, fores and against.
Enjoy what ever you decide.
I'm getting another Audi A1 automatic, lovely little car.