HI Wayne! The essay is long and full of passion about the subject. That made me realize that as an enthusiast, the way I (and my friends) have been measuring sound is by sensing it, by closing our eyes and letting the sound fill us. That kind of measurement would be the way Master Yoda would have it. But it falls short of quantifying sound.
Now, would a $1,000 investment be worth it? I'm still pondering about it