Problems arise when there are mismatches between demand and supply. I understand that Patek is its own storied institution, steeped in tradition, and that I have absolutely no right to tell them what to do, but any junior economist will tell you that problematic behavior such as bundling, flipping, and the grey market all arise out of the firm's inability or unwillingness to match the demand of the market with their supply.
The firm may attempt to remedy this by dictating AD behavior, screening potential buyers, etc, but these will lead to both externalities and "collateral damage" for well meaning collectors (as we have seen here) and be futile in the long term. The only solution is to produce more of what is in demand, and less of what is not...or by adjusting prices. However, while this is good for the collector it may not be for the brand because scarcity causes both hype - free advertising - and allows them to sell their whole production, while price drops damage their brand image and harm resell.
Harsh perhaps, but I believe Patek is moving in the right direction by casualizing the calatrava line. While I don't necessarily like many of the recent "carbon fibre" models, there is no denying that they are more wearable for more people. Maybe in a few years the calatravas will have enough demand from casual buyers to sustain itself.