I call it the "Apple pricing",where 1$ == 1€ .Why do businesses do that ? I'm pretty sure they'd ajust their pricing if 1€<1$.
I get that one needs to adjust with local regulations,the cost doing business,localisation,... but still 1$ != 1€. (a few years ago, 1€ ~= 1.50$ , so much that people just flew to USA to buy expensive Apple gear,and it was still cheaper than paying the € price).