Passion to Profession: From Collector to Operator: A 30-Year Journey at Mill Creek Sports with Brent Holcomb

Stacking Slabs

In this episode of Passion to Profession, I’m joined by Brent Holcomb, the operations lead at Mill Creek Sports—one of the largest sports memorabilia shops in the country.

We trace Brent’s journey from card hustling in college to overseeing a warehouse packed with 14,000+ signed helmets. He shares how he embraced eBay before it was cool, scaled athlete signings with Ken Griffey Jr. and Ichiro, and helped build a memorabilia business rooted in trust, authenticity, and adaptability.

If you’ve ever dreamed of turning your passion for sports collectibles into a career—or simply want to hear how a shop like Mill Creek runs behind the scenes—this one’s for you.

A special thank you to eBay for sponsoring Passion to Profession. The biggest and best marketplace to buy your next favorite trading card.

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