I had over 100,000 cards. Thats what I did growing up collecting cards and all. Most now are worthless. Just a hand full are worth some duckets. It depends on what you wanna do with them. If your going to keep them you need to preserve them. The old plastics in a binder was the old way,but what they found out doing so. The chemicals in the plastic ate the cards up. Once you find out which ones are common cards (Cards worth nothing to a few dollers). They have speical card board box's for them. The others that have some value to them. They have speical holders fo them now that shouldn't eat them up. You can sell them, but expect about 20% of face value...
just inherted a big baseball card collection dont know any thaing a bout any info would help just pm me thainks