Whats the most expensive mistake you made in the vintage hobby

[Tyruscobb]

When the pandemic first hit, I thought card prices would plummet along with the economy. I did not foresee the mass stimulus checks, or that cabin fever would cause people to jump back into the hobby increasing the demand.

In March 2020, I sent a lot of cards to auctions, including a Babe Ruth and a Willie Mays rookie.

I thought I was so smart. I’d sell before the crash and then buy the cards back (maybe even higher graded ones) at significantly reduced prices. A win-win. I would make some profit and buy better cards while still keeping some money in my pocket from the sales. Little did I know that I’ll likely never own those cards again, at least in the grades I had, due to the boom.