I just wanted to chime in and say that the same goes for kHz! More kHz, in most cases, is not at all better. But I’ve seen you already wrote everything about that, too 
So I won’t write more here. If you wonder about kHz, sampling frequency and “HD Audio”,go here and read this:
http://www.trustmeimascientist.com/2013/02/04/the-science-of-sample-rates-when-higher-is-better-and-when-it-isnt/
Xiph.org made two EXCELLENT videos on this topic. Highly recommended if you want to watch a video and not reading so much. They really go deep.
Thanks Fredo. I think we just need to keep repeating it for people to believe. It’s like the old war in CPUs that more GHz is better. Today, this law doesn’t work anymore as there are more cores and better parallel programming. Or that more Megapixels in a camera are better (while the chip size stays the same and the pixels get smaller and smaller, producing a lot more noise, making the image worse). Thanks for that article and reminder.