What is a baseball card hobby box?

Answer 1

Hobby boxes are available exclusively through approved Baseball card hobby shops. They are not sold through any large brick and mortar retailers, as doing so would effectively run a lot of hobby shops out of business.

Hobby boxes are typically more expensive then retail boxes of sports cards, but they also are stocked with a signficantly higher quantity and quality of hits - that is, special baseball cards like certified Autographs, game used memorabilia patch cards, etc.