I was a member of the Maggie Cult, and I suspect many will show their faces as their are maybe the most loyal bunch of owners. I escaped camp for a while but will return when I get the space to do then justice.
At the moment I am most intrigued by "soundstage." Mainly just having a setup that allows the music to breathe and layout into the room. I imagine most setups don't allow speaker positions to really allow the music to unfold. At the moment I get bother when I listen to systems that seem to have a congested or closed in soundstage. Personally, I've been looking for a thread to further explore this topic.