Living in a small area, I don't get to see as much as I would like. I still get out every single time I can, but normally I have to drive an hour or two for some good shows.
As far as similarities, it is cool to hear how similar my system sounds to our symphony orchestra here. But it will never do dynamics, and SPL anywhere near live. I mean, I have seen Tony Rice many many times, and I can get the same amount of dynamics, and SPL as he does when he is playing live in a small venue, but I can't touch even a small string quartet.
I saw a string quartet at my friend's wedding reception, and both of us were remarking about how our systems would never do that.
I just love seeing live music, and there is no substitute. Even the best system I have ever heard is not that close to live music.
B