You can't copyright facts, so no matter what the information will move to other media, but it will feel very good to put it out there I think even if you don't get rich from it.
One more FYI - the book I'm thinking about would be basically an "encyclopedia" of Victorinox 84mm and 91mm Officer's knives from 1897 - present. All models, variations, tool changes, tang stamps, etc. ....
Over the past week I drew up an outline for the chapters in the book and started working on sample chapter. Stay tuned...