Did you pay your taxes already ? I wonder what 
    would be your after-tax income ? Again, $2.5k 
    is still very low even for Eastern Europe.

I don't know which Eastern Europe you live in - but $2,500 per month (even if he ends up paying 50% taxes on it) is considerably higher than average income in Poland, the Czech Republic, Slovakia or Hungary.

And if we are talking about non-EU member like Ukraine, Russia, Belarus or Moldova $2,500/month puts you firmly into the ranks of the higher class (except maybe in Moscow).