no, it really is super unreasonable.

I disagree. I'm not a luddite. First, I didn't say that I use that exclusively. And furthermore:

* it's nice to have knowledge at hand when offline (commuting via train, abroad w/o a local data plan, no gsm coverage, edge connection instead of 4G)

* saves bandwidth for my 1GB/month data plan when appropriate

* Aard dict can be used to evade filtering (not my primary concern, but there are people in other countries who might benefit)

Travelers with intermittent connectivty are best served by offline databases with async/push updates.