The PSA 10 Topps Chrome Rookie Cards of Matt Ryan, Joe Flacco, & Jordy Nelson are still favored among collectors 17 years ...

There are several reasons why the 1976 Dave Winfield PSA is highly sought after by both vintage collectors and collectibles investors. For starters, the PSA 10 is super hard to come by because ...

When it comes to the lone PSA 10 version of this card, the sky is certainly the limit and based upon other sales this would be comparable at $8,000 to $15,000 in value.

The 1971 Topps NFL Johnny Unitas is a prime example of how scarcity drives the sports card market and with only one PSA 10 that is known to exist.