I agree with Mac... If you want to sell something, figure out what you want for it!!! I cant stand people fishing for a sucker who might throw out a big offer because hes not educated. Figure out what its worth, price it in a way thats fair to the seller and buyer and then see where it goes.
I always find it remarkable that people who list with the "make an offer" clause often have some big offer they didnt accept previously, even though its twice the "going rate" of an item... riiiiight, and you didnt accept that offer because??? This is where I go on to tell the seller that at what their last "offer" was I could sell them the same item for less... and of course they are "not buying" right now. riiiight, even though there is an offer with more money for the item waiting around the corner, they dont want to be hassled to make the assured profit... its always a good test that there isn't the big offer waiting, or at least its not serious.
If you want to argue that a price cant be put on it, then list it on a online or local auction and let the bidders determine it quickly, dont drag it out for weeks on a forum.
I would have to agree that we should all be able to list with a fair asking price. So I'm in favour of leaving it as one for sale category with everyone listing their prices.
just my 2 cents... and I'm done venting for the day.