Just called in for a retention offer; got 20k pts in 3 months for $3k spend.
I probably spend ~$2k-3k over the last year in airline purchases, Uber, Amex Offers, etc. The rep was quite adamant that the perks of the card far outweighed for $550 AF, but still gave me an offer as soon as the computer popped one up. Whole call took ~5 minutes.