I'm really unsure at least for the first point > I hope to sell more copies this way.
For a programming text I feel like the convenience of an online version that can be accessed on the same device you'd be using to test/practice would lead to greater and not lesser sales I actually don't think searchability is nearly as big a concern as some seem to think, since the chapter markings are incredibly granular so everything should be findable with relative ease > I value things that cannot be updated (rewritten, "modernized") behind my > back. > People these days spend too much time staring on their electronical devices. > I doubt it's healthy, time to read real physical books again. these are both fair, though I'm not sure that the second one is really your problem to solve
