Discussions on the potential extension of the Estonia Theater, home of the National Opera (Rahvusooper) and Ballet so far consist mainly of hot air, while there has been little substantive discussion, the national opera's artistic director, conductor Arvo Volmer, says. Talking to Klassikaraadio talk show "Delta" Tuesday, Volmer said that he was in principle in favor of an extension, while acknowledging that in his view, the question all comes back to development priorities. He said: "It's worth considering whether or not this option is currently the best way to develop sustainably our beloved home town." "I would like a substantive discussion on the issue. It is clear that we are at a unique historical stage where we are striving to rank among the cultural nations, in creating our own musical theater building," he went on.