Hi Andrew,
I think it bears keeping in mind that IF the 005 has been or will be discontinued due to lack of dealer orders that doesn't necessarily reflect a lack of interest from consumers, it just means that the dealers anticipate a lack of interest and/or have enough stock of 005s lying around that they don't need any more at the moment. It doesn't necessarily follow then that a model discontinued for the aformentioned reasons would necessarily have insufficient interest to sustain or inflate the price on the secondary market IMHO.
Lest anyone entertain any misconceptions: I don't know if the 005 has been discontinued nor certainly why and I am absolutely one of the last people in the world you'd ever want to ask about issues relating to economics, even where watch collecting is concerned. Just so we're all clear about that.
_john