Jarrod
Baseball fiction is even moe thinly traded than nonfiction. Most collectors I know have a copy of the book;the trick is to find a new collector to the market.
I've had 4or5 copies of the book. Here's one w/o dj, followed by one in dj
The prices on-line for what seems similar condition copies to yours (I.e. no dj) are $10, $25, 2 at $85 and $90