There's something to be said for collecting old coins. Some people do it for the fun of it or to have a cool story to tell.

$400 Even if your quarters don’t help you retire early, they could still be worth more than face value. Coin valuation ...

But you could still find some state quarters that are worth more than the usual 25 cents ... Here are 20 rare state quarters worth additional value, according to Gainesville Coins, USA CoinBook ...