Welcome to the club! Prices vary according to the condition, the rarity (how many were made, how many are still known to exist, etc.), the desire to own one and what day of the week the chips is being sold! You absolutely need to have a reference book, James Campiglia's 4th edition is out in about 2 months, the 11th edition of the Chip Rack is out sometime mid next year (you need both!). In the meantime you can always ask on the BB what a fair value is, you can try to buy an older verison of the Chip Rack, not a bad idea, you still can by Campiglia's 3rd edition on eBay but whatever you do!!!!!!! Do not buy blind!