May 6 Update: Select Target stores may have this set for 50% off. YMMV. Thanks to forum member Bystander for the tip.
Amazon America currently has 70724 LEGO Ninjago Ninjacopter on sale for $41.99 (reg.$59.99). Savings work out to be 30% off.
The Golden Dragon is also $21.99 (reg.$2.999) which works out to be 27% off. As always, free shipping on orders above $35 and no tax for most states. More of their hottest LEGO deals can be found here.