"If you have something that's 100 years old, and it looks like it's 100 years old, that's one thing. But if it looks like it's brand new, that's something else," said Anthony Nex, a vintage collector in Southern California. "That's impressive. When you alter a card, you're deceiving someone to make it look like it was cared for better than it was. The rabid memorabilia market created a strong incentive for card doctors, who could see large profit margins by illicitly altering a card to boost its