Mercedes-Benz Platinum Card from American Express Dead?

Researching another post, I tried to include a link to the Platinum Card from American Express Exclusively for Mercedes-Benz because it was the best personal sign up bonus for Membership Rewards at 50,000 Membership Rewards for spending $3k in three months.

If the Mercedes-Benz version of the card is dead, then the best Platinum card offers is the standard offer of 25,000 Membership Rewards after spending $2k in three months.

Sure there is a $450 annual fee--the Mercedes card had a $475 annual fee--but you can get easily more than $500 in statement credits plus worldwide airport lounge

Free Giveaway Friday, Delta Surcharge Relief, & Platinum Card non-News

1. Your Platinum Card's Membership Rewards will drop in value for Pay With Points redemptions on February 15, 2013 from 1.25 cents to 1 cent. This is pretty close to not being newsworthy, since Pay With Points is a bad deal at 1.25 cents. I'd rather transfer to Avios, Hawaiian Airlines, or even top off a Delta account before buying a cash ticket with Membership Rewards.

The Points Guy reports that you can call AMEX to cancel your Platinum card until December 30 at 800-525-3355 and receive a prorated refund of the $450 annual fee.