Speculator's market: The Tucson Citizen profiles 48-year-old John Lindstrom, who thinks he's sitting on a goldmine of Silver Age comics:

"'The reason I started collecting them seriously is it was going to be for my kids' college tuition,' Lindstrom said.

"But daughter Ingrid, 21, and son Johann, 20, have not needed the extra help.

"'So now it's our retirement or maybe his retirement,' Lindstrom said, pointing to his younger son.

"'When I married him 23 years ago, he said he collected them for when the kids went to college,' wife Ecaterina said with a laugh. 'The kids are in college, but I don't think he has sold one (comic book) yet.'"