Walked by the local drug store's magazine stand yesterday, and looked at some of the titles.
The train (full size & scale modelling), aircraft (several types/genres), guns, fashion, travel, etc seem to be still going strong.
Most of those would seem to have small, niche audiences, most have fewer ads, and no project-car-pipeline/parts-promotion like car magazines do.

Can't help but wonder if there's more to the story.