I like your comment about the point of diminishing returns. I think that it applies to many of us. I'm 58 and I'm sure that I don't hear as well as I used to, not that I would have ever claimed to have had excellent hearing. But, I do enjoy listening to good "sound." And, I really like the HT experience.
The Rat.
The Rat.
M80s, VP-150, QS8s,
SVS PC 20-39+, OPPO,
Onkyo 703s, Harmony 880
Sony 60" SXRD HDTV