Both Amazon and Walmart have discounted Lego Advent sets.
Harry Potter $28.79, https://www.amazon.com/LEGO-Calen…145&sr=
Guardians of the Galaxy $28.79, https://www.amazon.com/LEGO-Guard…210&sr=
Lego Friends, $22.39, https://www.amazon.com/LEGO-Frien…166&sr=
Harry Potter: https://www.walmart.com/ip/seort/911049629
Guardians: https://www.walmart.com/ip/LEGO-M…hbdg=L1300