Personally the opening and closing dates are as important to me as the chip it itself - how the casino markets in each respective areas makes their revenue and profit is "insignificant to me" unless it is part of my portfolio.

The dates are VIP also for our epochal reference and for cultural histories- wrong dates will muddy the future young minds of my 3 grand kids who will succeed in my hobby. This is the moot point of my questions because your "catalog" opening and closing dates are emphatically part of the knowledge that you share with the chipping community, and it has the imprimatur - Archie Black one and only and nobody else since 1990 every year your legacy is carried on to this day as I speak.

Or as they say "history lies"?