Best Buy offers the 13-Film Christmas Collector's Set on DVD for $3.99 with free shipping. That's the lowest total price we could find by $4. It includes Rudolph the Red-Nosed Reindeer, Santa Claus, Santa's Pocket Watch, The Night Before Christmas, and other titles.
Note that it's backordered but still available at this price. It may take up to six weeks to arrive.