This time of year is hit and miss.
Generally speaking, some people get Christmas bonuses and end up splurging on themselves but over all the plethora of end of year auctions (people trying to raise money), lack of time due to Christmas and Thanksgiving and credit card bills getting bloated I've found that this time of year is a buyer's market.
I think that as you get close to Christmas, people get busy and distracted and don't follow auctions or eBay listings as closely as at other times.
I'm not sure, though, that getting a bargain on a book like AF 15 is all that likely, even at high noon on Christmas Day.
I made one of my greatest ebay purchases on Xmas day about 3 years ago. As I seller I try to always make sure my auctions NEVER end on holidays.