I bring very little cash..I bring my leftover euros from the last trip and hit the ATM when I need scratch and use my Visa for all else...
as to the notion that "I think many people have a Platinium card"...really???...not in my world..and Amex Platinum card sales make up less than 5% of overall sales in all three of my shops....and this particular demographic pays 400/500 bucks a day for a family of four to ski, and then they pay 5 bucks for a slice of pizza, and are often seen in St Barts shirts and hats, ....so it surely is them who would have the card