What's "The Best of Car Talk" Actually Worth?

Dear Click and Clack,

A week or so ago you were talking about the potential value of Car Talk-related items with respect to the IRS.

I thought you might like to take this into account in estimating the value of Car Talk items:

The other day someone broke into our car and took everything of any value (not that there was much there, but anyway...). As we were milling around the car, becoming more and more depressed by this invasion of our sacred space, my daughter noticed something in the bushes. And what was it? It was our "Best of Click and Clack" tape!!

At first we were elated to know at least not everything was gone. Then we started to think...if even lowdown crooks don't want this tape, what can it be worth?!!

Mario Riolo