I purchased a pre-owned vehicle from a dealer in Houston approx. a year ago. I negotiated the price via email/ text and call. I made a deal I was happy but still asked for an additional $250 (the cost of the flight) and they were more than willing to give me what I asked for. And the salesman picked me up at the airport.
I had to pay for the fuel home, meals, snacks, and one night in a hotel, but I still beat the local price by more than a grand.

Based on my experience with the dealer, the price, and the fairly rapid drive home, I might never buy from a Colorado dealership again.
I've never learned more about a new vehicle than I discovered during a 14 hour drive home.