I actually did not look at the listing long enough to realize it was sealed, but that definitely makes more sense. Even then the discs by themselves on Amazon are being asked for over 20 dollars, 30 dollars sometimes, which is... interesting. I think what happened here was that the listings have just slowly started to increase in value over time because others think that this is how much its really worth, because I honestly have never even heard of this game being considered "rare" before today. Rarity is the only excuse I could think of for this game having such a high price even for just disc only but that doesn't seem to be the case here. I'm just not sure how the different variants of the discs matter towards its uncommon-ness or if it even matters at all. The fact that the game advertises a competition is also something, some games in the past that have been involved in competition (NWC, maybe SwordQuest) have gotten attention like this, but for those games it's a completely different story. Though, I don't have much experience with "rare" games, the rarest I have probably just being PaRappa PS1. Thanks guys.