I have to agree with "MoreCowBell", we have a sale going on here, in middle TN, up to labor day weekend. That sale is for the 2007 models. The sale is for most of the dealers and smaller "Watson's" sized stores. Even Costco
(heaven forbid I mention that name) has a "Cash and Carry" sale on all 2007 models on their floor. (It means just that; no credit cards) You buy, you load, and you take it home. They are billing it as need to make way for the new models coming soon.
The dealer I bought my spa from is not advertising, per-say, but, has been offering good prices on his floor models. So, I would venture to guess, you won't know unless you ask for a better deal.