More power for better sound at low volumes?

I concur with the 1st post, better resolution has to be an advantage at low listening levels. Lower noise floor in components is one way to improve resolution.
I do note in my travels that in the US there is a tendency to overdampen rooms, and suspect that if a listening room is overdamped, details get lost at lower listening levels.

Mapman,
You raise an excellent point with nearfield listening. I often use to pull my chair up to within 3 ft of the speakers ( Martin Logan CLS modded at the time ) and listen nearfield. I believe it removes the room effects and you get a much larger soundstage behind the speakers and can hear into it.
Reminds me of a one on one I had many years ago with Dave Wilson of Wilson Audio. He positioned me in a nearfield position, 3ft from each speaker and dead centre, and proceeded to run through many of his recordings to demonstrate his recording and microphone techniques. In this nearfield position all was revealed.