Back in the day when you responded to ads in the newspaper you might work out a price before going over and viewing the item. When you arrived to view, test drive or whatever, you could change your mind if you were not satisfied. That was all part of trying to sell your item and understood.
Now, I have no problem with the offer system on Audiogon but when I am looking for a particular piece and the seller has two days to respond, for which I'm stuck waiting the 2 days to hear back and in some cases the seller never responds, thus wasting my time, that irks me. Also, if the same piece comes up elsewhere for a good price I am stuck waiting for the first seller to respond and can not move on the second piece, which more often than not I end up losing.
I really think that if the seller doesn't respond in 8 hours the bidder should be released from any commitment to buy. Sellers play games and often wait for the last hour to respond and at times just let the clock run out.
Sorry to slightly high jack this thread but the system here is not perfect on a number of levels.