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?
I see Magicos here all the time. There are 10 for sale as of this writing. Another brand I hardly see here is Reference 3A.
@jeffreylee - Vandersteen Quatro Wood CT came to market this morning  but the seller prefer local pickup. I spoke to the seller and told him I'll take the responsibility of shipping even then, it was sold before I got the shipping Dimension :( 
Ya.. I agree with You Bro....


 Best Cheap Bluetooth Speakers