I've contributed articles to many niche publications and have edited columns. It is true that ego drives a lot of unnecessary, low-quality publication. Many small clubs churn out newsletters in order to be seen as legitimate, but the lack of quality material does the opposite. I've always been impressed with organizations who wait to publish until they have something worth publishing.
Of course, I don't know what that would mean for a disc golf magazine. I can't imagine what there is to say about it. This forum demonstrates that.