I still believe that you should document all of this and publicise it in the local and national press in your area. Just keep the facts straight and ask for their views on whether their processes are ethical?
You can copy the letter to Rolex, in fact copy it to everyone with a vested interest, the more people who see this the better.
I am sure that many other AD's are doing this, but it is about keeping the knowledge away from the customer, be explicit tell the customer that it will be a long wait, very long in fact, but never ever string the customer along and then drop the bombshell, just doesn't work.
My AD operates this way and does expect customer to buy something first but doesn't tell them, but the AD will supply you an individual watch but only when all those customers who have bought something else have been supplied, and as that list never really gets any shorter, getting the watch is almost impossible.
As I bought my DJ41 I am now entitled to buy anything else, just have to wait bit, if I buy the wife the DJ36 she wants, that wait time will come down. My issue, don't know which watch I want from the 'hot list'.