American Airlines has a new buy AAdvantage miles offer with maximum of 15,000 bonus for buying 50,000 miles. This is essentially 30% bonus on purchased miles at 50,000 level.
Thus offer is valid until November 15, 2013, and you can access it here.
The price of 65,000 miles (50K +15K bonus) is $1,513.13. The price of a mile purchased at the maximum bonus level is 2.32 cents each.
American Airlines will likely have a better purchase bonus and/or price at the end of November during the holiday period. If you don’t need the miles right now, I would wait for a month.
Here are the terms and conditions of this offer:
Transactions are nonrefundable and nonreversible. Please allow 72 hours for purchased AAdvantage® miles to post to the designated AAdvantage account. Please allow 5 days for the bonus miles to post. AAdvantage members must purchase at least 15,000 AAdvantage miles or more in a single transaction from the buyAAmiles® program beginning 12:00 am CT October 21, 2013, to 11:00 pm CT November 15, 2013, to be eligible for bonus miles. AAdvantage members must purchase between 15,000 and 29,000 AAdvantage miles in a single transaction from the buyAAmiles® program to be eligible to earn 4,000 bonus miles. Members must purchase between 30,000 and 49,000 AAdvantage miles in a single transaction to be eligible to earn 8,000 bonus miles. Members must purchase between 50,000 and 60,000 AAdvantage miles in a single transaction to be eligible to earn 15,000 bonus miles. The bonus miles earned are calculated based on each individual purchase amount and the corresponding bonus award. There is no limit to the number of transactions allowed during the offer period, however the total number of miles purchased via buyAAmiles is limited to a combined maximum of 60,000 miles per account, per calendar year. Bonus miles earned do not count toward the annual limit. AAdvantage miles purchased or earned through this promotion do not count toward elite-status qualification or Million MilerSM status.