How do we know which cards to check for value?
I have tons of cards that I have had packed away for over 10 yrs now, and I would really like to know if I have any that are of value. I just don't know which ones to check or not.
Is there a list of most valuable player's that I can refer to? I have baseball, football, basketball, even hockey cards and there are so many that it would take probably years if I went through each and every one. It would sure help if I had a list to go by.
Can anyone help me with that? I would really appreciate it. Any help is gladly accepted.