I think the goal reproducing music at home is to recreate an "experience." We also need to define the elements that comprise what an "experience" actually is. Recreating "all" of the music is certainly the main objective. But there is more. Our multiple sensors react to various stimuli, all of which make up a composite of the "experience." In my view, the ultimate "experience" would be the encapsulation of the entirety of an event resulting in a full saturation of all that touches us. Quantity IS a factor in achieving this. In other words, pack in as much information as humanly possible until we can’t physically, or mentally, take any more.
This is also event specific. A intimate female vocal at 60db may capture the experience to the degree where we have an unexplained desire to smoke a cigarette afterwards. But, "full bodied" events such as large orchestras or amplified concerts need much more. We need to feel the vibrations, huge dynamic contrasts, pressurize the room (as one here suggested), wrap the whole performance around us, and fill up every available brain cell with realtime information. This is true in other venues in addition to musical performances. Auto racing, for example. Putting mufflers on the cars wouldn’t be the same.
This all works up to the limitations of the our bodies, the maximum clean output of the system -- AND, the room. The "room" is a component in that it bounces those reflections right back at us. And, loudness is a factor. The reflections are not only more audible, they stick around longer, too. While a quiet performance may produce reflections, those reflections may decay enough to where they "die" after the first surface. Loud sounds will energetically bounce off that first surface strongly enough to arrive at the 2nd, and 3rd, and .... surfaces. Each time with more time delay, blurring the signal to the degree where it no longer resembles the original.
So, it depends on what you’re into. If the venue dictates -- crank it up, and take it all in!! Just have respect for your neighbors -- and, your hearing.