What are the speakers you very rarely find in the Used market(Audiogon or Anywhere)?


I'm looking for Vandersteen Quatro CT, Wilson Sabrina or DeVore Fidelity Orangutan 0/93 or 0/96. I rarely find it or in some cases, before I make an offer, it is gone. What other speakers are a rare find?
karurravi
The be-20 dmd’s Are excellent speakers and I have a pair of them along with a pair of DSP8000’s and I have to pick 1 to keep, you would think that the $65k speakers would trounce the $20k ushers and I wish it was that easy but those big ushers have a lot going for them and when we factor dollars per smiles the usher speakers are a bargain.
I've never seen a pair of Vandersteen 7 Mk. II and rarely see 5a Carbons on the used market.