If this fare is good enough (and it is, IMMV), why don't you book it? You do not need to stay in Bucharest/OTP, if you do not want to. From OTP you can go pretty much anywhere in Europe on the cheap, thanks to the low cost carriers such us W6, 0B or FR. And you don't even have to fly a low cost carrier, you can book legacy carriers as well, as their fares from OTP are not high either, since they need to compete with the LCCs.