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Action Comics #1 Hello Superman ($3,200,000)
When it comes to comic books, Action Comics #1 Hello Superman is the most expensive and rarest comic book in history. This comic book is considered to be the holy grail because it was the first time Superman was featured in a comic book. The comic book was first released in 1938 and was the first time people saw the man in blue.
There are only 50 in existence which makes it even more sought after by collectors. The most recent Action Comics #1 Hello Superman sold for a whopping $3.2 million at auction and will only increase in price as the years go on.