Except for front pages and editorial pages, advertising drives newspaper content. When pages are laid out, the ads are the first items to be placed. Then, whatever space is left gets filled with news and related photos.
Since 1897, the motto on the front page of the New York Times has been "All the news that's fit to print." Those who know better say it should be "All the news that fits, we print."
When newspapers have a special section, like photography, cooking, travel, home renovation, etc., the purpose is not to provide information, it is to sell advertising whose revenues supplement the revenues from regular contracts.
Income from subscriptions and single copy sales covers the cost of paper, ink printing and distribution. EVERYTHING else is paid for by advertising revenues.
Don't hold your breath waiting for a special section on film photography or fax machines, although both still have users.