Dana Cain is so hip it hurts. She has that knack for knowing which old stuff is especially new again, and has used it to build an empire of totally entertaining collectibles expos. First, she's the entrepreneurial brain behind the Collectors Supershow toy extravaganza, which recently joined forces with the Majesticon comics show to provide a double whammy of happy pop-culture hunting under one roof. Last summer she launched the enormously popular Denver Modernism Show, an unbelievable mid-century blowout that will quadruple in size when it returns this August at a larger venue. And her newest take on collectibles-hawking was the recent Vintage Voltage Expo, an electronics-centric show that included everything from vinyl records to guitar amps to old-school audio gear. There's a packrat in each and every one of us, so go, Dana, go!