AAdvantageEshopping mall has a promotion for subscribing magazines via Magazines.com and getting 60 miles per USD charged.
Essentially, you could consider this as buying miles for 1.67 each (even if you wouldn’t care about the magazines at all). You can access Magazines.com AAdvantageEshopping page here.
AAdvantageEshopping also has a promotion for getting 2,500 bonus miles for spending $250 by December 2, 2013. I wrote about this promotion earlier and you can access that piece here.
If you have not yet participated to the eshopping promo and spend $250 on Magazines.com, you would earn total of 70 miles per USD charged for purchasing $250 worth of subscription. The price of a purchased miles is 1.43 cents each.
This is an excellent way of “buying” American Airlines AAdvantage miles cheaply. You can get 17,500 miles for spending $250 on the Eshopping mall, when you combine the Magazines.com 60 miles per USD and the holiday eshopping promotions.
Friend pointed me for this promo that is discussed on FlyerTalk as well (read more here).