Less than two days remain in the auction of Nicolas Cage’s highly graded Action Comics #1. Depending on if there is a flurry of bidding at the end, Cage’s book may or may not set the record for most valuable comic book of all time.So what is the most valuable comic book? We sat down with some collectors, conducted some research and came up with the following list. All titles are based on a CGC 9.0. Note: Auctions are fickle things. The right buyer might bring a much higher price than anticipated, whereas market forces could also cause a title to sell for less. In other words, these are our best estimates.
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