Not that my opinion means anything, but what if any Celebration II Exclusives were made only available with the purchase of the ticket, at the time the ticket purchase was made? Taking it one step further, a ticket holder could only purchase one type of exclusive per ticket they pay for. In practical terms, this means that, say, when I go to pre-purchase my Celebration III ticket, at that time I have to decide which exclusives I want and pay for them then. The merchandise is then shipped to me with the ticket. Then the exclusive remains just that...an exclusive to the event and each ticket holder gets just one of each per ticket they pay for. Of course, someone can buy multiple tickets and then multiple exclusives and try to make up the cost on ebay later, but it seems that fewer opportunists would take that road as the upfront cost (with the unused ticket) would get pretty hefty.
I didn't go to CII, but friends that did attend explained later that they missed many "events" because they had to stand in extremely long lines for hours at a time just for the chance that the Jorge Sacul might be available. Kinda takes the fun out of the experience.