The power of Pokémon is drawing new collectors to card games as investment opportunities. The franchise is dominating the collectible card market at the moment, and the spotlight is widening to include other trading card games. Business Insider spoke to Elizabeth Gruene, the general manager of pop culture at Professional Sports Authenticators, or PSA, which authenticates and grades trading cards based on their condition. PSA got its start in grading sports cards, but a major flip in recent