I was actually about to post from the same matter. In a way i dont care paying more. Like i a flat rate i would pay 10% more anyway but when i have to pay 10%more and my money is 10% more valuable it doesnt make sense..

Price is 49.99us and 54.99 eur. So its 60us for euro player. 

That aint no problem in a way.. but if plarium would think about the cashflow from the direction of gift cards or similar. So if i buy a 25eur googleplay card i cant make a purchace of pack that would be24.99us cos its 27.99eur. So i can only buy 2x 9.99us what totals 21.88eur. Ok that is close to 25us but as a player i lose value.

Whales dont care those things but with big player base  of occasinal buyers and young players that gets gplay cards as gifts arent spending those on the game cos they "cant" buy the pack