Yeah, but Bulgaria lost its monetary sovereignty a long time ago (1st July 1997). The Currency Board took effect on that date. With it BGN was "tied" to the German mark (DM) forcing a fixed exchange rate of 1,000 BGN for 1 DM. When Germany switched to the €, and Bulgaria had the redenomination after the hyperinflation (1,000 BGN --> 1 BGN), a fixed conversion rate was set to 1.95583 BGN for 1 €. Bulgaria hasn't been really free since 1997 to set its own monetary policy and has been bonded to the success/failure of the €. Switching to the € won't change much in this regard.
Nihil sub sole novum.
All fiat will eventually go to 0.
#bitcoin is freedom.