Imagine searching through Grandma's garage, and boxes of faded baseball cards suddenly appear in front of you. Doesn't your heart race a little? "Could these have any value?" I understand the buzz ...

One of the most important parts of buying or selling sports cards is knowing how to read and use comparable sales, or “comps.” Comps show you how a particular card, or the closest match to it, has ...

While some people like Pokémon cards for their competitive value, others prefer to look at them as investments. These slabs of shiny cardboard can run up an immense price on the resale market, ...