That post by @cabel that I just reposted is crazy interesting. that DAK catalog and those that preceded it are essentially an enthusiast / hobby website, like #DPReview, or #CoffeeGeek or #Cocktailian, but long before the internet existed. This DAK guy and others before him ran an "enthusiast website" and sold stuff thru it, via a printed magazine catalog.
So cool.
https://cabel.com/2023/11/06/dak-and-the-golden-age-of-gadget-catalogs/