I could be an idiot and buy this car in a local dealer or i can buy this car from foreign resseler for 100 000 euro with some tax.
The same here dont buy DOS2 on GOG or Steam for 48 Euro . You could buy from resseler Steam/GOG Account with DOS2 game on it ... for 16 Euro.
Yes, you can always do that, nobody will stop you (and you may indeed be lucky enough to find a - probably Russian - account with DOS2 on it). But then all of your money will go to that reseller and nothing to Larian, so they will have less money for support or for developing future games. If all people in Poland do that, then Larian's statistics will show that it has sold no copies of the game in Poland, which makes it even less likely that they will ever add Polish translations.
But as I said, if that's the way you want to go to purchase this game, then you can definitely do that.
