There's more and more live music being released this way, though.
-----Exactly!
Tim, there are some exceptionally good Blu-ray music concerts out there; and that is a fact.
For example; Peter Gabriel - New Blood - Live in London - 3D. :b
...Just google it for fun. ...But there are many other BD titles with excellent multichannel music recording quality (high res audio) and with high def picture quality as well.
To deprive yourself of those is to miss some good things in life, IMO. :b