A similar test was run in 1965 connected with I.Q. levels, but the test was scrapped due to an unwillingness by casino guests to have their I.Q.'s measured a second time after their gambling experience was over. Very few of these pins still exist and they are highly sought after by collectors. Counterfeits have been sold at the Gambler's General Store, but after thousands were sold to unsuspecting e-bay buyers, it is my understanding that only a few dozen remain. That's good enough for me---and it should be for you, too.