Reviewers are buying retail. They are just not going through the store markup but paying exactly or maybe more than what the store does.
And yes, it's highly unethical for reviewers to flip equipment for a higher price. And if anyone thinks that high-end manufacturers don't keep an eye out for their equipment and what it's selling for on Audiogon, you're sadly deluded.
This topic has been beaten to death already here and other places and is rather long in the tooth.
Apparently not, with 4 pages so far All sales do not go through Audiogon, Private sales are very common ...
There seems to be an agreement that the process is flawed what are the suggestions to better it?