ReefHound:
My bad, I was thinking of Discover. But I wouldn't advise that you go somewhere like Cozumel with only your Amex card.
Actually Discover is stronger than it used to be, but I've kinda got to agree with you that it's not a mainstream card (if not obselete). Lots more places take it, but lots don't. You still have to carry an Amex or Visa/Mastercard if you have a discover, so I see no real reason to have to carry an additional card, so the Discover card gets the 'axe' over the others. \
For those that say they use Discover for the CASH BACK program, which is 1% on everything and 5% on select item groups, other cards beat that big-time.
As for Cozumel... I've used my American Express for many purchases in Cozumel and never had a problem.... (well besides the merchant 'whinning' about it, which I got at any store I used it at. Some threatened surcharge but dropped that as I told them nevermind on the purchase.) The only place I didn't get any problems was at restaurants, but I'm sure that's an issue in some places also though.
But you are right. I wouldn't go to Cozumel with just my American Express card. Lots of places that don't take it there. (or won't admit they take it).
It's a 'known' that in vacation destinations like Cozumel that the merchants (at shops) try to stick it to the tourists as much as possible. They want cash preferably, especially on small purchases. They try to stick you with surcharges or give you flemsy exchange rates (as they charge your card in Peso's but most items are sold in US dollar amounts, so they convert it for the card.). Having your wife put a 99cent pocket calculator in her purse will usually make them much more honest. You'd be surprised how many times in Mexico that I've paid for a meal in US dollars and they bring the change back in Peso's and the change amount be off by 30 or 40$. Basically it's dishonst and stealing, but they dont see it that way. They see it as a normal way of life and that everyone does it and a way to stick it to the tourist.
Anyway... sorry for straying so far off topic of the thread Phil. BTW... Phil / Dive Sports takes American Express
They know my card number by heart I'm afraid.... (I have no clue if they take Discover... )