My AD, who is the top PP dealer in Hongkong, will never charge a premium for ANY watch. I vividly remembered being offered the even more rare 5050 couple of years back, and he had to apologize he could only only a notional discount.
My understanding is that rare timepieces are "reserved" for most valued clients, not intended to be traded for a premium. After all, it is PP aim to ensure special items should make it into true collectors' hands, not for speculation. May I suggest you visit another AD.