The $300 discount on the current, high-end retail configuration (MC976LL/A) of the 15-inch MacBook Pro with Retina display (8GB of RAM/512GB SSD/GeForce GT 650M) is instantaneous when using the links in this article or our Mac Price Guide. The promotion, which offers the lowest price on this model by roughly $190, is valid until 11:59 pm on November 30th.
Buying with AppleCare?
It's also worth noting that B&H is offering Apple's $349.00 3-year AppleCare extended protection plan for just $122 with this MacBook Pro (and all 15-inch MacBook Pros) when purchasing both the Mac and the service plan on the same order. That's a savings of $527 over Apple's MSRP for the same Mac and AppleCare bundle, as can be seen in our Macs with AppleCare Price Guide. Plus B&H also throws in a free copy of Parallels Desktop or FileMaker Bento.
Similarly, all $249.00 AppleCare service plans for 13-inch and smaller MacBooks are just $95 with each Mac purchase. We've published step-by-step instructions on how to make sure you take advantage of these Mac+AppleCare bundle discounts. But in the case of this current offer, simply follow this link to the 2.6GHz MacBook Pro product page, click the blue "ADD TO CART" button. A "Buy Together and Save" window will pop up. First select your free piece of software, then click the "COMPUTER ACCESSORIES" tab on the lower left and add the $122 AppleCare protection. Finally, click "ADD SELECTED TO CART" at the top right of the "Buy Together and Save" window. That should yield a final price of $2,621.00, or $527 off list price.