Honus Wagner Baseball Card
Maker: Factory 25
Original Price: $50*
Worth Today: $3.1 Million*
Perhaps the most well-known and expensive baseball card in the world, the Honus Wagner Baseball Card sold for a record-breaking $3.1 million in 2007. The card is in mint condition and is regarded as the best version of the card in existence. Which with a price like that is exactly what one would expect, especially since the Wagner card has set many records over the years.