Peter David's site has mainly been going between publishing chapters of a "Twilight" satire called "Potato Moon" and reprinting old columns from the Comics Buyer's Guide. One of them is from 1992 when he talks about the change in format (to clarify: he's talking about the change to a foldable paper, to facilitate mailing; and not the monthly magazine format it became). What I found eerily prescient was this quote:
"My father, a reporter, went from newspaper to newspaper, and they kept folding under him. Eventually he got out of newspapers entirely. How long before newspapers are gotten out as well?"
Eerie, given what's happened lately. And it looks like a first time when a subsequent format really did kill off it's predecessor.