More evidence that LEGO Prince of Persia didn't rock the sales charts...
Amazon currently has several PoP sets at deep discounts and part of their BOGO 50% page. Not only that , FBTB reports that free shipping is available, regardless of the total value of your order (standard shipping 3 to 5 days).
LEGO's loss can be your gain, as PoP featured lots of great minifig parts and weapons. You won't see discounts like this again for some time. Check it out when you get a chance.