Point is you say probably cheaper to use your ATM card in the foreign country.
I'm questioning that as maybe in the end if you withdraw several times you end up paying more than if you had taken it all out at a bank in Ireland in the first place.
e.g I recently took out 2,500 Zloty at a cost of I think it was Euro 6.66
equates to approx € 700.
So if I had taken this out in using my ATM in more than 2 visits abroad I would have paid surely Euro 6.66.