In high school I did a choir tour and we went through Germany, Austria and Hungary, and one of my favorite places was Budapest
Much more reasonable then Salzburg, and IMHO, a better place.
We did a Cruise down the Danube, sang in the Castle District, and quite possibly one of the
best deals in the
world
The
Hungarian State Opera House - 2nd Best Opera House Acoustically behind La Scala.
And the PRICE!
$40 for Box Seats best of House and $5 for the cheap seats!!!
You have to go no way around it
http://www.jegymester.hu/index_eng.html