What is the value of a Casper comic book 1965 volume 1 number 87?

The value of a Casper comic book from 1965, volume 1, number 87, can vary widely depending on its condition, rarity, and demand among collectors. On average, a copy in good condition can range from $10 to $50, while a pristine copy could fetch upwards of $100 or more. It's best to consult with a comic book expert or online pricing guide for a more accurate valuation.