I wanted to find a one owner Tahoe that fit my budget. By using the selective process that Carfax provides, I was able to look at several one owner Tahoe's online and chose the one I wanted. I then worked online with the dealer to negotiate the price. The final step was to go on-site and finish the deal. Since the vehicle was 40 miles from my home, I was not interested in trying to negotiate the price while on-site. After a test drive, I had a couple of things I wanted done before taking ownership and was able to come back one more time after the dealer was done. The ability to select parameters such as model and price and one-owner was helpful.