My 2 cents:

I bought 84 for 1 BTC. Sold them all for $140+ ($3360 profit). I thought jeez, that was a good deal.... so I bought 50 more. ASICMINER dropped the price to .55, so I ended up selling all 50 for about $75 (a $1250 loss) because prices on Ebay had already crashed. Sellers beware. You might get stung by ASICMINER dropping the prices, or by the Ebay system... read on...

Ebay fees are so high, it literally ate ANY profit I had and I actually think I operated at a loss because of ASICMINER's dropping prices.

I even had one person file a case because I said in the auction it would run at 300+ Mh and his was only running at 275-295 Mh. He said he came on the forums here and someone told him they are supposed to run at 336 Mh. I wish I knew who told him that... after mining on over a 100 of these, that is the FASTEST a BE will ever run. Speeds vary (as I mentioned in the auction) as with any other mining equipment.

Anyways.. be careful about how you describe the item and its hash speed. Of course the guy that files the case mines on the damn thing for 2 weeks before he asks for a refund. I wish I knew his name on here so I could give him a piece of my mind. Actually, I gave him a piece of my mind in a Ebay case message. I'm probably getting a negative feedback.. I just couldn't help myself. If you are not happy with the buy, then send it back and ask for your money back... don't mine on it for 2 weeks...

So, I'm done with Ebay and BEs...

/rant

PS: Sorry canary, this is the only thread I knew about selling BEs on Ebay and thought others doing the same thing needed to hear these things.