You know it is really funny when I read this thread. As I note in many of the comments above about this hobby of ours the comments are really LESS about music than it is the hobby itself, the sound, the gear etc. This is perfectly evidenced by the OP question at hand which is essentially why don't people want to share the "music" when the emphasis is really on listening to the system and the sound that it make. It seems the folks were perfectly happy with the music playing through the B&O, not the sound of the music.
I can't imagine more than a given few that give a rats ass how a system sounds and even if they do the amount of attention among a group of intelligent adults having a get together is not going to center around a focused "sit down" listening to music, it just doesn't ever happen in my experience. Really think about what you expect. You don't want to force your guests to be bored to death, do you?
I suggest if you REALLY want to get that kind of focused listening get together invite them to a live concert instead. It has a better chance of leading them into coming home and listening to some music. That might open the door maybe, but don't hold your breath they might just ask it you wouldn't mind turning on the telly to watch "American Idol".
