I couldn't disagree more. There are MANY superior transfers. MANY.
As for music, just typed in "classical music bluray" at Amazon, and there are 46 hits. I have two of them, the Brandenburg Concertos with Abbado and the Pyongyang Concert. The video is not demo material, compared to bluray, but of course it's still way better than what DVD could
possibly offer. I highly recommend both. The Dave Matthews concert is visually better than the aforementioned titles. I would suppose that the opera format would be a big beneficiary of the format, as that is inherently both a visual and aural experience, but unfortunately I rarely get excited about opera.
I mean... I dunno... bluray represents a greater % increase in vertical lines of rez over DVD, than DVD does over VHS.
disclaimer: 159" screen, 42 deg viewing angle