In an age when digital is so powerful, the printed catalogue survives with a strange stubbornness because it works. A physical catalog is held, stored, left to a meeting table. Unlike screens, it does not compete with notifications for attention.
In particular, the printed catalogue in B2B sales, fairs and dealership networks is still a powerful trust tool, with quality paper, accurate skin and careful print; it describes the brand as 'serious' without the need for words.
The correct approach is to set up the two to feed each other, not 'digital or printed': the printed catalog moves what is in its hands to digital with a QR, while the digital catalog remains updated at any time.