I don't think it should go for $100 because the deck is not limited.
That's the thing about marketplaces - things sell for what people are willing to buy them for. It would go for a lot less if it was a sheet of something terribly common, like Bikes. But in this case, there's the deck, which is attractive and will likely not last forever (at least not before the creation of a version 2 deck) and there's the sheet itself, far rarer than the decks. Up until recently, uncut sheets rarely saw the light of day outside of the USPC printing room.