@beaver, Check recent sales data for each, subtract the difference and then negotiate a price with your friend there. Id use Ebay as a reference which is probably your best bet. Sales go up and down daily, so i typically go with the past 2-3 weeks data and work from there. Hope this helps
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Ended up with like a 4.5k diff
Maybe more like a 3.5k difference
PSA 8 ~ $8.5k
PSA 9 ~ $12k
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Maybe nothing if you find a 9 in an 8 case!
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Pay whatever price he wants, then after the trade end him humanely. No one needs to know. Sell the 8 on Ebay and it’s all profit
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