If you are buyer or a seller the new "buy it now" option on ebay will open up a whole new world to the way we all do business on ebay.  Now as a seller you can place a buy it now price but still accept offers, this is especially helpful if you are selling a very expensive item.  As a Seller you can offer the lowest price and try to get the best deals on ebay.

Take some time and run some searches on ebay, I think you will find youself looking for the "best offer" button soon enough.