Marlins Crap

I promised I wouldn't be doing any of these post in the near future, but I lied.  The reason for this post doesn't have anything to do with filling space.  It has to do with this is getting intriguing, at least to me.

What is deal with the Marlins infield dirt being a collectors item?

The Highland Mint presents this unique minted 3 Coin set featuring a 24KT Gold overlay Team Commemorative Coin, a 24KT Gold overlay Team Stadium Coin and a Bronze Coin with MLB Authenticated Stadium Infield Dirt embedded in the center. Each Infield Dirt Coin is labeled with an numbered MLB hologram attesting to its authenticity and each can be verified on MLB.com.

Either this is getting insane or I'm missing some point.  Either is possible.