How fair is this?

Listing on both sites is easily remedied by stating that that the item is listed for sale (or auction) on both sites, and each listing is subject to immediate cancellation upon prior sale.

I can see no objection from any buyer, or E-Bay, or Audiogon if the terms are spelled out clearly in the listing text.

IMO. FWIW. Kumbaya...

Sendtaylor99; Practically, I agree with your perspective of the situation. My point was in principal.

What if both auctions end at the same price with two different people "winning"?

Pawlowski6132, then we split the baby in halves. The first winner gets first choice of halves.....................Or does it now become a Dutch Auction?...............HHHMMM?

Well, the seller just ended the auction on Ebay. It doesn't say why. He had four offers, two of which were declined, so who knows.

This one just ended as well So who's the lucky winner and at what price?:

http://cgi.audiogon.com/cgi-bin/auc.pl?spkrmoni&1174440938&1&3&1&

Interesting...

I guess that if you end both auctions early, you're not contractually bound to either auction. You can then cherry-pick the list of interested bidders to find the top acceptable offer.

Effective, but shady?