Prada's at a Discount...Already?

What are these Prada's doing on Bluefly already? I thought this was one of their new styles?

Prada - black gradated patent leather 'Sfumata' sandals - 20% off at $440 (was $550)

**UPDATE: Wow! Those didn't last long, did they? 24 hours later and they're down from five size options to two. Ladies, if you're a size 6 or 7, you better get clicking now if you want these Prada's at a discount**

Image/item (bluefly.com)