A guy brought a WATA graded 9.5 copy to Pawn Stars and wanted 1 mil. An expert who came in said that some people have turned down offers of 300k. However... I dont feel that necessarily means the game is worth over 300k. Just that it may have sentimental value for them or they simply dont want to part with it. so i think that "expert" did a slight disservice by incorrectly confusing refusal to sell with perceived value.

We know it is worth at least $100,100 as that is how much one of them went for. the guy on PS said there are something like ten of these or less in existence. so yes that is extraordinarily rare.

it is not farfetched to say the thing is worth over a mil considering there are coins worth 8 figures or more