Mylar sleeve vs. PSA holder for preservation

[Volod]

Thanks for another great post, Steve - interesting info. I am wondering about:

"Newsprint is a great example of a paper that degrades somewhat rapidly. In a confined space with little ventilation that acid can remain, and accelerate the degradation."

Since comicbook pages are probably similar to newsprint, would the acidic degradation factor not argue for forgoing sleeves altogether in the case of books? That is, apart from protecting the covers, squeezing the interior pages tightly would seem to accelerate the process to some extent. I have always inserted the recommended nonacidic buffer board in my own comic sleeves, but can't see how it would protect all the pages, instead of just the two it is between. Any thoughts on that?