It depends on what ground you're asking. Well, in comparison to Western and Northern Europe countries, Yes they're poor. Some countries which were the states of former Yugoslavia and USSR are definitely poor in comparison to other Western Europe countries. The eastern Europe counries are extremely traditional.
Furthermore, why is Eastern Europe Underdeveloped?
(1) Short answer: Eastern Europe did not experience the full medley of Western European events, that shaped Western European development from Feudalism through the Industrial Revolution prosperity, that solidified economic class-driven democracy. Eastern Europe was screwed by Communism. Lost years.
Secondly, why is Eastern Europe poorer than Western Europe?
With the exception of what became the Czech Republic, most of Eastern Europe was always more agrarian and therefore poorer than much of Western Europe. Much of the European theatre of the Second World War happened in Eastern Europe, in today's Poland, Ukraine, Belarus, the Baltic countries, the Balkans and Russia.
Why is Eastern Europe so cheap?
The prices are a little higher since the 1990s, but Eastern Europe is still very cheap when compared to the West. That's mostly because many countries in the region keep their own currencies. You get so much more for your money here than anywhere else and the standards are just as high as in Western European countries.
Is it safe to visit Eastern Europe?
Staying Safe in 7 Eastern European Countries Bulgaria - Sticking to the tourist areas is the safest, of course, but if you're like me and like to stray from the beaten path, make sure you pack your common sense and use it at all times. If you wait until there are less tourists around, you're going to be safer.