Until October 14th, Barnes and Noble is running a buy one get one 50% off promotion on select educational toys & games in their online store. There are several Lego sets covered under this sale, most of them now making their best seller list. City Arctic Outpost (60035) and Creator Tree House (31010) to name a couple.
http://www.barnesandnoble.com/p/toys-games-lego-city-arctic-outpost-60035/27798807?ean=673419207645
http://www.barnesandnoble.com/p/toys-games-lego-creator-tree-house-31010/26384997?ean=673419189682
