Follow-up to Scott's comment: I've had my AMEX account for 21 years, and their service has been superb. They've never failed to back me up. Conversely, I once needed VISA as my secondary insurance after a car accident. Not only was the paperwork beyond insane, the incompetence made the Keystone Cops look like an elite military unit.

So, having Costco dump AMEX rankles me on a lot of levels. Pre-AMEX, Costco would only take Discover, so I had to get that card. When they switched to AMEX, AMEX switched my existing account number to a new Costco card number. I had to advise everyone who had my card on file. Now, they've got to change it back to something. Problem? So far nothing they've offered has the same perks. I don't want a cash back card, which is what they're pushing. And I'll likely have to pony up an additional annual fee. Meanwhile, Costco is forcing every member with an AMEX card to get two new cards: a new AMEX (assuming you still want to have one) and a Costco VISA. Worse, again it's on the members/cardholders to advise everyone they do business with that their account information has changed. That's millions of accounts! Can I get a "Hey, Costco! WTF?"