There are some segments of this hobby, where it takes just two people to drive prices crazy, so it is impossible to guess future prices and what will be popular. I've seen prices of certain teams in the Old Judge set take off because a couple people both decided they wanted them at the same time and I've seen other teams level off/drop when one people decided to stop collecting and sell their cards.
If some multi-millionaire decides tomorrow he wants every T206 with an EPDG back, then the market will take off on them. You can't predict down the line if that will happen or not.
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Please check out my books on baseball history. They include the bio of star second baseman Dots Miller. A book featuring 20 Moonlight Graham players who got into just one game. Another with 13 players who were with the Pittsburgh Pirates during the regular season, but never played a game. There's also one about 27 baseball families, as well as a day-by-day look at the worst team in Pittsburgh Pirates history. All five can be found here: https://www.amazon.com/stores/John-D...hor/B0DH87Q2DS
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