I'm not sure you can make generalizations based on specific results, especially for items like tickets or photos, where the market is thinner. One guy who decides he's out and you can see a 50% drop in prices from auction to auction. As an ephemera collector and boxing type card collector, that is a consistent thing over the years: one or two people drop out and the market falls back significantly.
I've stopped thinking short term, except opportunistically. After nearly 50 years of buying and selling cards my focus is more on either whether I want to have something until I really liquidate, or on where I think the item is likely to be when I liquidate.
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