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T206Collector...but, if you want another huge book with lots of numbers on the cheap, I have a few extra telephone books that can tell you almost as much about the current market for cards as the 2008 SCP.
I recognize the idea of having all the data in one easily flippable place, but if the numbers aren't up to date -- or are even open to debate -- then you don't have any meaningful data.
The most, if not only meaningful value for a card is what the last person paid for it on the open market.