[philliesphan]

When cards are so rare -- who can you really "talk" about with them?

Some collectors don't like to disclose the rarities they have (particularly on a public forum), as it exposes them to risk or relentless trade requests. But beyond that, there's the show-n-tell, and the "Wanting to Buy" posts, but there's not much else in terms of novel insight that can be brought to the hobby.

For example, in the last fifteen years, I think total transacted volume of Lummis Peanut Butter singles is less than five:

(This example is not mine -- show for reference):