Tompe and Elfwreck, thanks for the informational responses to my question!
I agree that my supposition would only apply to more recent publications. Back in the early 80's, I worked for a government agency that was pretty much on the cutting edge of technology and we practically had to beg our end users to use the software we developed to make their jobs easier! You can lead a horse to water. . .
I know my view was/is a little simplistic, but I get frustrated with the short-sightedness of publishing companies or any company for that matter that doesn't take advantage of the technology available as long as it is cost effective.
Kaz