Fellow MRI -
This may be of interest to anyone who flies with American Airlines or because of the impending merger, US Air.
American Airlines - Marriott Rewards
According to the terms:
"When you stay at select JW Marriott®, Autograph Collection® Hotels, Renaissance® Hotels, Marriott Hotels®, or Gaylord Hotels® between November 10, 2014 and January 31, 2015, you'll get more than an unforgettable experience. You will also earn 1,000 American Airlines AAdvantage® bonus miles with each stay. So start planning your next trip to one of Marriott's 270 participating full service hotels and resorts in the US and Canada right away."
When you opt for miles instead of points, you are no longer eligible for MegaBonus. However, MegaBonus ends January 15 so one could switch to miles as their earning preference for January 16 - 31 and still take advantage of this offer.