It should be advertised at the airport. There should be health warnings on the tickets. If you are a classical music newbie and go for the cheapest tickets up in the gods of the Hungarian State Opera House, you must be prepared for the fact that the seats are the most uncomfortable creation known to man! Instruments of torture, I tell you! As a colleague of mine in work suggested the next day, maybe I should have gone dressed in the style that would have been in vogue when the place was built; replete with corset and multiple layers of skirt….
PS: the Budapest Philharmonic were fantastic. Just bring a cushion.