On Amazon right now you can get this popular LEGO City Town 60133 Advent Calendar Building Kit (290 Piece) for only $29.94. This set sells out every year, so if you are interested act fast!
This will ship free with Amazon Prime or qualifies for free Super Saver Shipping with a $49 purchase.
Note: Amazon prices and promotions can change at any time. The price(s) listed in this post is/are subject to change.