It is nice to know they are there. With the number of collectors increasing there will be more of a demand for rare dice even at a 4 or 5. The number of collectors has increased quite a bit since Jeff Laudeman made that value scale. He does state in his books that the scale is subjective due to demand and the number of dice surfacing. One casino's dice that took a big dive on the rarety scale this year was Foxy's Firehouse. I saw 2 huge lots of them selling on ebay so they went from a 5 or 6 to an 8 or 9.