What is happening with baseball card prices?

[Exhibitman]

Last year I sold some basketball cards that were going absolutely ape-shit crazy. I sold them on the way up, far above what I paid but well below where they peaked. I replaced them with lower grade examples for a tiny fraction of the price. Haven't regretted it a bit. Sometimes you just have to decide that this % of gain is enough and take the profit. I do not profess to know where that number is, but it seems to me that when inventory goes nearly to zero it is a good time to consider cashing out. For a lot of the cards that have soared in price and that have zero inventory, it might be worthwhile to list what you have at 2x the last sale price and see what happens. I am very tempted to do so.