Walmart has featured the game in their Black Friday mail ad along with over 25 other popular titles at that price point. The deal will apparently begin on Thursday (see your local store ad for details); the price will be for in-store purchases only.
Amazon is also getting in on the action, featuring GT5 XL in their Black Friday Lightning Deals. The game will be sold at that price point on Thursday, November 22, between 5:10-9:10pm PST or while supplies last.
Considering that XL Edition includes a $20 PlayStation Store voucher, these deals offer a significant value at $10, even for those who may already own a copy of the game but are looking to purchase the additional DLC which is available.
If you decide to take advantage of these deals, thanks for helping out GTPlanet by purchasing the games via the affiliate links above.