I've always been a big supporter of Fords Panther platform (i.e. Crown Vic, Grand Marquis, Town Car) and when I found out that they weren't going to be making them any more I wanted to get one last new Grand Marquis in 2010. I went to Enterprise and bought a slightly used rental, complete with a full warranty for less than most people would buy a new Nissan Sentra.
It was essentially a new car, hardly broken in with 18K miles on the odometer.
We do the same thing with almost everything we buy, from computers to cameras. If we can get a factory refurbished item, we'll take it in a heartbeat.