Whoa.....wait a sec. Even 5 years ago, $400 for a used fish was a great deal, despite that a brand new one direct from Rev could be
ordered for $700-800.
At this point in time, I don't think the original list price has anything to do with the "actual" value of fishes.
Try convincing someone selling their early '62 RI Jazz, that it's only worth a couple hundred, 'cos the original list price was around $500. Not a perfect analogy, but still...
Fishes are what they are, and supply is extremely limited (sadly).
The situation is made worse by the fact that some of you clowns insist on hoarding the damn things!