Vellum, eh?
Can't help feeling he's missed the point about vellum, which is that it was a reusable medium! You simply scraped off the top layer with a sharp knife and reused it. Examinations of surviving vellum documents today indicate that in some cases much more valuable (in today's terms) items have been overwritten with (e.g.) yet another beautifully illuminated Gospel of St John. Aesthetically more pleasing but actually not as interesting as the local history that was written on there until some Abbott decided it wasn't worth keeping...
Parallels, anyone?
Biting the hand that feeds IT
