One of Beato's videos was about why he was going to release his next album only as 320 kbs mp3, since you can't hear the difference between that and any higher resolution.
And if you've ever been to a Bonnamassa concert, the sound quality is as bad as it gets anywhere.
While it is true that most musicians don't care that much about sound quality, those two care even less than most musicians. Their opinion on high end audio is about as valid as my opinion is on the Stanley Cup--is that the hockey thing?