The most expensive sports cards have reached staggering prices, often fetching millions of dollars at auctions. One of the most famous and valuable cards is the 1952 Topps Mickey Mantle rookie card, which has sold for over $12 million in recent years, setting a record for a baseball card. Other highly sought-after cards include the 1909-1911 T206 Honus Wagner card, considered one of the rarest and most expensive cards in the world, with one in excellent condition selling for over $6 million. Basketball cards have also seen incredible value, with a 2003-04 LeBron James rookie card from the Upper Deck Exquisite Collection selling for $5.2 million in 2021. The value of these cards is driven by factors such as rarity, condition, historical significance, and the stature of the athlete featured. These record-breaking sales highlight the growing intersection of sports memorabilia and high-value collectibles.