I helped start Out of Print Archive but life got in the way, and I had nothing that could legally be distributed so it was hard to keep the passion for the project when I was working 40+ hours a week at my day job. I know Meppi, the main guy doing edits there, is absolutely amazing at his craft.
I know one magazine, scanned fairly decently can take a few minutes per page to prepare so a 400+ page Computer Shopper? Yeah, no. Lol.
I think most owners of these publications view preservation as just that, preservation. There is no real market for capitalizing on the old issues. I worked the deal with Gamefan Magazine, and Electronic Gaming Monthly (which included the second iteration of Electronic Games) but both owners of those publications were only interested in offering their stuff via custom apps they had created (rather than more mainstream options, or just going free with them). That sucked but we tried to make the partnership work with both before it fell through (Gamefan, I believe was due to typical Gamefan B.S. - most of the horror stories you hear from former workers are about what we went through in that process as well).
Sometimes it is true, it is best to not meet your heroes and ruin your view of them.
RE: Compute! (February 1989)