Try working this out then - i was in Meis yesterday and the Cypriot Brandy in duty free was Euro 12.65, but in the local supermarket everyone goes to - 14.70 euro for the same litre bottle?? Last time i went the same bottle in the supermarket was 18 euros. As usual all the ferry boat staff were stocking up on as much duty free stuff as they could carry.
Also ex rate for euro was 2.51 TL in Turkey or via turkish ATM, Popped into the only bank there thinking i would change an extra 50TL to euro and the guy told me the rate there was 3.39TL to the euro and a 6 euro commision charge!!!!