What is consider a rare comic book you ask? An estimate number from 100-1000 copies ordered from retailers would be enough to be consider a rare comic book print run. These super low print run can help immensely increase a comic book value compare to it's other cover and variants.
War of the Realms: New Agents of Atlas #1 3rd Print Billy Tan Variant CBCS 9.8
Sale price $29900 $299.00
War of the Realms: New Agents of Atlas #1 3rd Print Billy Tan Variant CGC 9.6
Sale price $21900 $219.00
Spider-Man 2099 #1 Australian Newsstand Variant APV CGC 6.5
Sale price $1,02000 $1,020.00