American Express has announced that on 12/30/23 it will no longer be possible to purchase points. The change was announced on statements and reads as follows:
Effective December 30, 2023, we are eliminating the option for Card Members to buy Membership Rewards points. The Membership Rewards Program Terms and Conditions will be updated to reflect this change.
Currently you can purchase 1,000 points for $25 (2.5¢ per point). Can’t see this being a big loss for most people but maybe it was useful in some circumstances.
Hat tip to Travel With Grant