Watches or prices? We should not confuse the prices of with the value of watches.
And which criteria have to be met to make a price a "fair" one?
On the question about reflexivity you raised: It would be only natural if there was a feedback loop between the discussions on these and other fora and the collectors' interest in discussed models. It also seems likely to me that this interest is more focused on the iconic pieces than others.
But the question that remains is: what brings a watch to an iconic status or into the focus of the collecting crowd. Is it just enthusiasts or is it the manufacturers too. Take the DSA: it is more than likely that interest in the reedition of the DSA was raised by discussions about the real one in these and other fora. Has anybody questioned why these discussions happened? And why at a time when the reedition was more or less imminent? I myself doubt that the DSA was an iconic JLC watch before it's reedition. Could it be that the interest in this watch was solely generated by marketing means? Well, that's the way the cookie crumbles in the world of consumerism, isn't it.
Christian