Your understanding about market price as it applies to property is warped. If you were gauranteed another buyer tommorow then yes I would hold out for a price as close to todays "notional" market price however if I beleived prices were falling I have to weigh up taking a hit today or waiting fingers crossed for another buyer soon or else run the risk that 3+ months go by, prices slide further and now may have to field even lower prices.
Hence why I stated your comparison to shares as just plain dumb because there is always a ready market to buy your shares which is not the case with property.
Also your view on property is narrow to say the least. Why invest in property if there is no capital growth? Because not all of us just buy a finished home and sit on it. I buy a block and "improve" the value so if prices are stable then I will still make my set margin. This is the same for renovators, builders, developers and those seeking cashflow investments and the list goes on. Or am i wrong here too? Yes or No? Or do all developers go broke when prices go sideways? lol, seriously expand your horizon it will do you some good.