It was a very rare and important edition of the comic and it is very clear that it worth a lot of money but he had no idea how much. He himself did not the exact value of the comic, so to get the best price he put the book up for auction. He was absolutely sure about making at least thousand bucks out of it. This comic was originally of 10 cents only but you will be shocked to know of how much it was sold. $175,000. Yes, you read that right. Believe your eyes. Even David couldn’t believe that the house of $,10,100 would make him the rightful owner of $175,000.