That isn't even close to a solution. The disparity in cost for Zloty in Poland and typical pricing / wages vs game cost isn't so easily reconciled with other Euro countries unless you drop the price far below every other country. Publishers have the choice, and they won't bite. They haven't done so for pretty much ever and it is perfectly legal for them to make that choice of retaining their profits. In the worst situations, as with Russia prior to locking, pubs will either purposely hike the price higher or not produce the game for the region at all.
Well, what can i say, Poland did join the EU didn't it? I get the problem of theory and pragmatism not working together but im not exactly suave with granting special privileges for a weaker economy that joined a union knowing full well what will happen.