Point acknowledged (and well received).
I can answer that from a real world (stretched thin) small business owner perspective..
Speaking for myself; hand written notes end up in "the pile".
The pile consists of "need to do's" and other relevant information that is pertinent to any given situation in its totality yet not worthy of precious time here and now. This is because, sometimes, what is "significant" and wholly "relevant" does not always become clear until a matter fleshes itself out...just how it is in the real world of small business.
The ability to mark up and to create notes "on the fly" and simply save them on a medium that will allow you to consolidate and refer to said notes is an INCREDIBLY powerful tool.
If you are familiar with mind mapping software..think of it like mind mapping software, lite.
Consider this: I can mark up a part drawing at a customers facility. As I am leaving I can share the info with an employee, as I am leaving. That individual can then "get on it" as I am re-framing my mindset for the next meeting, project, or set of circumstances while taking in the whole of the upcoming customers agenda and requirement.
This is an incredibly powerful business tool. (Analyze, take notes, determine course of action, pass along info, forget it with the ability to revisit)..as simplistic as it may sound, that's huge.
Again, your point is acknowledged..often I will take notes, snap a photo of the note, text to office..voila! Same thing..