However, some autographs are just so valuable that they are worth up to millions of dollars! Read on to discover some of the most expensive autographs in the world, citing Under30CEO, Investopedia, ...

8. 2005 The Cup #180 Sidney Crosby Rookie Card Autograph, $37,200 One of the top ten most expensive hockey cards is 2005’s ‘The Cup #180 Sidney Crosby Rookie Card Autograph’, valued at $37,200.

The most expensive baseball cards derive their value from a combination ... with a distinctive reflective pattern and serial numbering of 1/1. Autographed by Trout, the card represents the pinnacle of ...

In the realm of sports memorabilia, few pursuits are as thrilling as the hunt for the most valuable New England Patriots ...