Forum member tremere informs us that Toys R Us America currently has LEGO Ninjago 70728 Battle for Ninjago City on sale for $72.98 (reg.$119.99). Savings work out to be 39% off. Some stores have limited availability where you can do store pickup. Not a bad idea to stack up with the free Hulk minifigure promotion!
Note that Battle for Ninjago City is a retired and sold out set at LEGO Shop at Home.