Update: Post Office now sold out.
The LEGO Winter Village Post Office set is back instock for $49.99 (reg.$59.99). Fire Brigade, Grand Emporium, Pet Shop and Harry Potter Diagon Alley are all still available for $139.99 (reg.$149.99) as well. As always, Amazon offers free shipping and no tax to most states. More of their hottest LEGO deals can be found here.