How much time have you spent in Bulgaria?
The Sofia Echo makes mention of Bulgarian children (mainly gypsy children) being sold into prostitution, gangland murders, flood damage, heroin trafficking, two hour wait for ambulance...
Just like home, really.
http://www.sofiaecho.com/news/news/catid_66
The best way to know if it will be the right thing for you is to spend a lot of time there, getting to know the politics, the rules, regulations, red tape - it will all affect you as a property owner, unlike the holiday maker.