Also, when it comes to hotels and airlines, they need to take into account the merchant fees for accepting corporate cards when setting their prices, so in practice the European cap of interchange fees has no bearing on room rates or airline tickets anyway. Maybe it has when buying milk at the supermarket.

I.e. regardless of EU directives we in Europe still pay the same room rates, but we get less benefits than we would have without the regulations. Furthermore, those of us in EU countries have to pay higher taxes in order to pay the people in Brussels who have to come up with new rules all the time in order to justify their jobs.