It’s best to know where you store your valuables. One of my uncles lost a valuable coin that he bought as a first to his collection. He just shrugged it off because he didn’t know the coin value. When he found the coin, he brought it to a friend of his who is an expert on coins and he was told that it was indeed very valuable!
Good thing he found the coin right away. Now more than ever, he is interested in adding more coins to his collection. He plans to study the value of coins so that he will be able to appraise what he will buy in the near future.