As for the car analogy, I have to disagree...I went to two dealerships for serious talks about purchasing cars. First time I slept on that decision and backed out. Second time, I walked out. Third time, I got my car. Just because Jones didn't sign on the dotted line doesn't mean he will reject the offer...it's smart of him to be sleeping on that offer.
Your buying experience is EXACTLY what I'm referring to in my original post: after your first visit, you went home to "think about it" and decided to pass. Welcome to the 90% of people who "think about it" and don't buy. You did this again on the second deal. You opted for the third deal because you'd done your research and finally found the right deal/fit for you. You probably bought the same day too, right? You'd already "thought about it" enough and were ready to buy.
I know y'all want to try and see differences in buying and selling a piece of merchandise compared to a coach being sold on a job. The dynamics are not different. When an AD closes the deal, "his guy" does not leave the building without a signed offer. When they do go home to "think about it" they make it a lot less likely that they're going to come on board.