otter wrote:I know Costco has ended their relationship with Amex in Canada and it is rumored that they are considering doing the same in the US.
They're rebidding the contract. What they'll do I doubt even they know. They may get a better deal from amex; they might get a large bank and a network to give them a better deal than amex will, like Cap1 and MC in .ca; they might get a good co-branded card deal, and take multiple types of cards.
Costco does, or used to, have a card that was good only in store. It was backed by hsbc (now cap1). There is still a business account that's not amex, also by cap1, and also a fleet fueling card. they don't like to admit these things exist, though, which is probably an AMEX requirement.