This is entirely untrue.

Simple example:

Actual book from 1732 (rare, original, older than your country): https://blackwells.co.uk/bookshop/product/The-Compleat-City-... -- yours for £1,258.00

A scan of the same edition of that book: https://archive.org/details/bim_eighteenth-century_the-compl... -- free. Nobody's paying any money for the digital copy.

I don't think you understand the book itself is a collectible object with rarity and value, regardless of the information it contains.