Lets say your starving and have no money but you have $1,000 worth of baseball cards. Can you trade the baseball card for food? Can you go to the supermarket and offer a Albert Pujols rookie card for a piece of meat? I would think the answer is no. Now lets say you have eight 1958 quarters, you could at least get a slice of pizza. Granted you would be taking a loss because silver is worth more but at least you can get food.
Sometimes it makes me wonder why people would think someone would trade them silver or gold for sports cards. Precious metals will always be worth money, if a star athlete gets injured will their cards be worth anything? I think you know the answer. Its just funny that collectors would think that a baseball or football card is worth that much. But you know the saying: "people think their stuff is worth gold"? Well I guess these people are that delusional.