Sports memorabilia can have great rates of appreciation. A baseball that was worth a couple dollars suddenly appreciated to 3 million dollars when Mark Mcguire hit his 70th homerun of the 1998 season. A Michael Jordan 23kt Gold Fleer Signed Rookie Card sold for $13,500 in 2004. A pair of Johnny Damon’s worn cleats sold for $10,000 in 2004.
If you collected baseball cards in 1910 and managed to keep a Honus Wagner card, it would be worth about $1 million today. A 1952 Topps rookie card of Mickey Mantle is currently worth $300,000.
However, you usually have to wait about a hundred years to see these levels of appreciation. A 1985 Mark McGuire rookie card is worth just over $100. So don’t throw away your childhood baseball cards. They may be worth more than your house.