joycie, I take back what I said about you initiating it, if it happened as you said in your most recent post. I've seen enough times where people have heard about a sale ahead of time, and purchased the item at a higher price before the sale, intending to use the price match guarantee afterwards--thereby assuring that they get one before they sell out. Which is a perfectly acceptable practice, provided that the purchase falls within the store's price match guidelines. I mistakenly thought you had done that. Even so, regardless of what some sales know-nothing might have told you, Best Buy's price match guarantee is, in my experience, pretty widely posted in the store, and is also easy to find on their website.
Also, I've seen too many occurances (not necessarily at BB) where a salesperson has told a customer something, stated it correctly, and the customer either misunderstood/misinterpretted what he said, or lied about what he said to try to gain an advantage, to say that this sales person in your situation even did anything wrong. I still feel there's just as much chance of this being a misunderstanding as it being an incorrect statement by the salesman.
And FYI, the "math lesson", as you put it, wasn't meant as a dig. I was just making sure you were aware of the total price difference, in case you were considering keeping it at the elevated price. The " :angry: " at the end was meant to say, "Man, this sucks even more with the corrected math", rather than being a comment on your math itself.
Whatever you decide to do, good luck! And I second Bahb advice--regardless of whether you keep this one, watch the sales on this item.