Unless you are living in Germany, because then you aren't allowed to buy [...]
Sorry for the little rant, without a doubt there have been more than enough discussions about that topic in the last few years, but I'm just angry now about such stupidity ...
Fortunate you can active non-local keys in you local account and get the non-local version with most games.
Ther are expections like Wofenstein New Order and Metal Gear Rising: Revenge where you local position affects if you can play the game at all and if yes, which version.
I have a Japanese account, and Steam does not allow you to buy lots of Capcom and Konami games, but I get what I want with keys from other stores. They activated just fine.
After Germany, japan es the second worst account to have.