In January 2021, Magic: The Gathering had one of those moments that went mainstream. The sale of a single Black Lotus card, an extreme rarity from the game's first-ever set of cards, reached a final amount of $511,100 in an eBay auction. Previous examples of the Alpha Black Lotus (the first series of MTG cards is called the Alpha series) had gone for as much as $250K, but this more than doubled the record and the general reaction was of astonishment. Not that Magic: The Gathering cards can be valuable...