Why Pokémon cards are growing faster than your retirement account

Pokémon cards are scorching hot right now. An index tracking the thousands of rare cards shows that valuations have increased 170% in the last year alone. Growth like that really makes you wish you hadn’t given away all your childhood cards years ago.<br/><br/>Today on the show, we cover three things that are contributing to the rapid growth of shiny cards produced by the world’s highest-grossing media franchise.<br/><br/><strong>Come see Planet Money live on stage in April! 12 cities. Details and tix …