Good to know! It's been a while since I've used it, and I could have sworn I got a leaflet in the mail about it ending for the Aadvantage Platinum, but I'm 100% open to being wrong on that.

The feature I really used to use was the purchase price protection. If the price of an item that you bought dropped within 90 days (from almost any major retailer or online store) you could request the difference in price as a credit. They also had a pretty easy web portal that would allow you to add an item and Citi would monitor a few stores for you - automatically crediting the difference. I have no trouble believing that it was not sustainable.