Hello NewToSpas,
Best of luck with your search. Not sure about the price you were quoted. I think to a very large degree price depends on what area you live in. I really would not put too much stock in what others quote you regarding price unless you live in the same general area.
I do think though that you are not getting the full discount you are entitled to. If you look on the Jacuzzi website, the rebate for the J-385 should be $600, not the $500 you are getting.