I started back collecting in 2009. At one point I owned 5 or 6 RPAs from Panini Absolute & timeless treasures. Including some numbered to /25 & /10. Was buying them for $30-$100 on ebay. Then sold them like 4 years later for around $200-$300 which back then was insane profit on a trading card in my eyes. I only still have this one still bc I accidentally overlooked it in a commons box! The 5 or 6 Steph Cards I sold back then for around 1.5k total are definitely worth closer to $100k total now. Rough memories haha. What are your regret early sells?