Collectors like me are more in it for the collection more than the price, but when we buy the cards we want to make sure we're paying a fair price. One dealer may sell a card for significantly more than another and you might find one card that costs more than an entire group of cards.
Do you buy it or do you keep looking to see if you can get it cheaper? The Official Price Guide To Collectible Card Games provides the most up-to-date pricing on card game packs and individual cards. They have many different sets available as well, so you don't have to keep buying different books for each card game that you have. This is an indispensable tool for card game collectors large and small.
You can now go into a negotiation armed with the knowledge of how much the cards are worth and keep from unknowingly paying too much. You may still end up overpaying, but at least you'll know it. The Official Prince Guide To Collectible Card Games needs to be in your CCG arsenal or else you may end up getting taken to the cleaners by unscrupulous dealers looking to make a quick buck.