That’s what Danielle Smith, and others like her, want. They want something that matches their comic collections: a small batch of games representing key moments in gaming, in the best condition possible. A “sticker-sealed” early copy of Super Mario , a sealed Metroid , a first-print Mike Tyson’s Punch-Out. Although she’s been collecting comics for 15 years, Smith’s personal collection only numbers around 90 books that, even encased in their protective plastic slabs, fit into three small boxes. But those boxes contain an Action Comics issue 1, the first appearance of Superman, that Smith estimates to be worth about $750,000. She’s also got a Detective Comics 27, the first appearance of Batman.