Yes for posterity, and to make even more information available to anyone who may not have the Master Parts Catalog (MPC).
No to save cloud storage, reduce superfluous clutter, and I doubt these old products (technology) is better than modern alternatives.
I can’t see Mr Miyagi reaching for B7A-19517-B when an old rag and a tin of readily available turtle wax would suffice. But then again what do I know, I’m still
.