The speculator boom

Comic book collecting is a hobby that treats comic books and related items as collectibles or artwork to be sought after and preserved. Though considerably more recent than the collecting of postage stamps (philately) or books (bibliophilia), it has a major following around the world today and is partially responsible for the increased interest in comics after the temporary slump experienced during the 1980s.

Comics are collected for several possible reasons, including appreciation, nostalgia, financial profit, and completion of the collection. The comic book came to light in the pop culture arena in the 1930s due to the popularity of superhero characters Superman, Batman, and Captain Marvel. Since the 1960s, two publishers have dominated the American comic book industry: Marvel Comics, publisher of such comics as Spider-Man, X-Men, and Fantastic Four, and DC Comics, which publishes titles such as Superman, Batman, and Wonder Woman. Other large non-manga publishers include Image Comics, IDW, and Dark Horse Comics.

As comic books regained their popularity in the 1960s during the boom of the Silver Age, fans organized comic book conventions, where they could meet to discuss their favorite comics with each other and eventually with the creators themselves. As of 2010^[update], numerous conventions and festivals are held around the world, with Comic-Con International held annually in San Digo, being the largest and best-known convention in the United States.

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Wikipedia