Athens is like a different country compared to the rest of Greece. If you go to the north, there's a lot more of that Balkan mentality. It's because the country is very diverse in terms of the landscape, so you tend to see a lot of different lifestyles as well. So the people of Athens have a different mentality to the people of the other cities. The islanders have different mentality to the village folks and the Cretes have a different mentality to all the rest of them. It's difficult to explain though.
"The true Balkans is Serbia, Bulgaria and Romania?" Is it because they're similar slavic cultures? I can't say I understand what you mean exactly.
Offtop:
mentality not "metality". I'm still struck to the metal and salad. 