Our local audio club has some very well-heeled members. One of them built what is essentially a whole house for his system: about 1,000 sq ft, Craftsman wood paneled, designed in consultation with an acoustician. Then he installed about $850K worth of kit: MBL Radialstrahler speakers (yet again!), MBL monoblocks to drive them, etc. etc.
While I agree that those magical MBLs create an aural hallucination—one can walk anywhere in the room and still perceive a stereo soundstage—instrumental timbre was no better (maybe not even as accurate) as my own system, and the whole presentation left me kind of cold. Moreover, attempting to play John Oswald's "Spectre" (performed by the Kronos Quartet) at volume actually shut the system down! In my listening room, the climax of that piece sounds like a 747 taking off.