Waspman - I'm sure you're right, but who decides the conversion rate? Surely no taverna is going to give you higher than the daily rate it can get? It wouldn't make sense.
Supposing we have supper and it costs EUR50 on the bill, would I be better off paying on a credit card at whatever arbitrary rate the taverna applies, or handing over the Euro notes bought at a good exchange rate?
I'm being thick here, but I really don't get it!
During the five weeks we spent in AS last year the local rate was always lower than the on-line purchase rate. It used to be in the good old days of the drachma, but I can't see it now.