For the past 6-7 years, I have kept a running spreadsheet tracking items that I am interested for sale in current auctions. For each card I am interested in, I track the current bid, the cost with BP, and the cost of the next bid with BP; I also have a side sheet that adds taxes and other expenses, so I can estimate the all-in cost to me. As part of this spreadsheet, I do a deep valuation of the cards I track and I often account for the overall SGC-PSA population (both separate and combined). I color-code each item -- blue is within 10% high or low of my estimate, green is 10%+ lower than my estimate, and red is 10%+ higher than my estimate. In general, I am pretty good at estimating the final price (hammer + BP) on items I am interested in.
I did this for the REA auction last night. Of the 21 cards I tracked, 7 were within 10% of my estimate, 4 were below my estimate, and 10 (almost 50%) ended above my estimate. To me, that signals one of two things: (i) I am not good at estimating, which may be true, or (ii) the results in REA last night were quite strong.
Of particular note, Wagners are on fire, with every Wagner I followed ending at or above (sometimes substantially above) my estimate. Look at the M116 blue Wagner SGC 3, which finished about $4k higher than the blue SGC 3 Cobb -- Wagner outpricing Cobb in the same card and grade is not something you normally see
Last edited by Rhotchkiss; 04-24-2023 at 09:23 AM.
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