They are the same no matter what currency is that and maybe its possibe that price could be higher in the current price if you wanted to buy in a local exchange site(of course using your own local currency)but lower than the current price when your going to sell.
so true . it depends on the price of an exchanger. we find it difficult to get the lowest price. because almost all exchange has a price that is not far adrift. for me is getting exchange of reliable and safe. it is the most important thing.