For professional collectors or retail environments, binders with 9-pocket pages and capacities of 480–720+ cards are most popular. Larger binders reduce the need for multiple albums, saving space and offering better organization. Side-load and zipper styles are recommended for high-value cards since they provide added security. Retailers often prefer large binders as they enhance perceived value and cater to serious collectors, making them a stronger selling point in the B2B wholesale market.