From what I understood, the point of that bit of the article is that having less stuff (for the same functionality) often costs more, and he justifies it by the

From what I understood, the point of that bit of the article is that having less stuff (for the same functionality) often costs more, and he justifies it by the digitalization of his library and media library. Therefore if your only motivation was saving money, the author argues you'd be better off doing something other than reducing the amount of stuff you have.