More reason to take that price to Best Buy and price match. I did that when it was 79.99 for an add-a-line on Amazon a few days ago. I even got a $50 BB giftcard for signing a 2 year contract that they put on the price of the phone. Total pre-tax price... 29.99. Plus they have no restocking fees and price match either before or after the sale no problem.
I *hate* BB but you can not argue with that policy they have...