Going through an issue of Better Homes and Gardens from the 1930s looking for a recipe. The pages left are at least 2/3 if not more advertising. Most pages are one column of text with two columns of ads. The issue price scaled for inflation would be $2.50, or about half of what a modern issue would cost but I bet the content to ad ratio is better now though. The ads are pretty dreadful too. I've included this one screenshot of telling mothers the best food to feed their kids for proper energy is Karo Syrup. LOL.
I thought websites were overly lousy with shitty ads. They are practically pristine in comparison!
(h/t @Retro Librarian Pillsbury ad for sending me on this goose chase :))