LEGO is running a promotion this weekend, November 13-15, 2015.  Purchase the Temple of Airjitsu (70751), and receive a free Enter the Serpent (70749) set.  Enter the Serpent is $59.99 MSRP. This offer is available in US LEGO Stores and online at LEGO Shop @ Home.  NOTE:  Although initially available at LEGO Shop @ Home, it appears to now be in-store only. Just in case you want to see it, here is the fine print on the offer: **70749 Enter the Serpent free gift offer is valid