Amazon America currently has LEGO 60104 City Airport Passenger Terminal Building on sale for $78.99 (reg.$99.99). Savings work out to be 21% off.
They also got LEGO 60134 City People Pack on sale for $30.46 (reg.$39.99) which works out to be 24% off. With 14 minifigures, a unique baby figure and various accessories, each minfigure just works out to be a bit over $2 each. This set would make a great addition for LEGO City expansion.
As always, free shipping on all orders over $35 at Amazon.