American Express is offering a 30% bonus on transfers of Membership Rewards points to Marriott through October 31. You have to log into Membership Rewards to see the bonus offer (or else it’ll show 1:1 transfers in 1000 point increments).
In general this is a bad deal. Marriott points are worth 7/10ths of a cent apiece. A 30% bonus means you’re getting 9/10ths of a cent worth of points for each American Express point.
You wouldn’t put spend on a Marriott credit card earning 1 Marriott point per dollar. And you wouldn’t put spend on a Marriott card at 1.3 points per dollar, either. Indeed, Marriott’s co-brand cards generally earn 2 points per dollar for unbonused spend and still that’s not my preference.
Even if you needed to top off your Marriott account I’d avoid doing this. While purchasing points from Marriott isn’t a good deal, you can buy up to 50,000 points per year at $12.50 per thousand or 1.25 cents apiece.
The general point here is that outside of Chase transfers to Hyatt, conversions of transferrable points into hotel points is simply a bad deal and a 30% transfer bonus doesn’t reverse that in this case.
(HT: Frequent Miler)