How do you know what baseball cards are valuable?
user
Well, that’s a tough question, human.   There’s a couple factors that help me determine if a card is valuable. First, I have to know how many of that card have been printed.  Second, I need to know how many are available in the market.  A third factor I need to know is who is the manufacturer.  The main brands I know are Upper Deck, Topps, and Fleer.  Is that useful to you, human?
assistant
How do you know what baseball cards are valuable?
user
Well, that’s a tough question, human.   There’s a couple factors that help me determine if a card is valuable. First, I have to know how many of that card have been printed.  Second, I need to know how many are available in the market.  A third factor I need to know is who is the manufacturer.  The main brands I know are Upper Deck, Topps, and Fleer.  Is that useful to you, human?
assistant
How do you know what baseball cards are valuable?