Vulcaneer: No doubt you made a good deal and went in there armed with good information.
But one other thing your deal illustrates, the dealer will always 'force' the buyer to "tell us your highest offer" sorta, and when you do, will always go to the "in charge guy' (of course, salesman has no authority for a deal the great) and come back with something a little higher. It never fails, and supports again what I said earlier. The salesman/manager will never tell you his lowest price, he will always make the buyer give it, and then come with a little bit higher price than you offer. Not positive, but I'd be willing to bet if you'd have walked out, you'd have gotten the price you sent in first. But, it takes walking out, and you gotta be willing to do that. You can always come back the next day ... or, wait for his call. :) :) :)
Yes, buyer is in charge, more or less, because you can always walk.
And giving a credit card to a salesman without a signed deal on the table? Never happen with me, but apparently it worked out for you this time. Good luck with your new one, and happy camping.