It is amazing how decades later small pieces of old cardboard could be so valuable. Buying packs of cards specifically for the gross gum for a nickel turned out to be a valuable investment. Not only for the dentist…but the kids who’s mom didn’t throw them in the garbage. The following are some pointers on how most arrive at a fair value for your baseball cards; the most important part without a doubt is the condition of the cards. Next would be the player on the card; and lastly, the rarity of the card. There are many more variables for baseball card values, but this should get you started. Please feel free to contact baseballcardadviser.com for a more in depth explanation.