Pearlman said Bezos' announcement came as a complete surprise to the space memorabilia world.

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In the world of sports memorabilia, old classics are the safe bet.

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In the world of Oz memorabilia, Shaw is best known for having owned one of the four existing pairs of Dorothy's ruby slippers.

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In the world of celebrity memorabilia, says Sotheby's specialist Leila Dunbar , it's the famous owner that determines value, and that is tough to fathom until auction day rolls around.

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Others came forward with memorabilia from the World Trade Center they carried with them into Baghdad.

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One such collector is Sy Winnie , Webmaster of Spidermancollector.com and owner of one of the largest collections of Spider-Man-related memorabilia and collectibles in the world.

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An auction of memorabilia donated by the motor racing world was also held.

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Check out collecting magazines such as Movie Collector's World (mcwonline.com) and follow the entertainment memorabilia auctions at the major auction houses and on Ebay.

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Check out collecting magazines like Movie Collector's World magazine, mcwonline.com, and follow the entertainment memorabilia auctions at the major auction houses, the up-and-coming Howard Lowery Gallery in Burbank, Calif. and on Ebay.

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