Upon a little more reflection, I think the thing about missing page numbers, for me, is that without them I find myself distracted by a missing sense of orientation. You're absolutely right that most readers provide that in one way or another; but (at least with the reader I use) that information is only visible on demand. I found myself wondering where in the mag I was, missing the page numbers, then clicking to invoke the information from the reader, and I found that to be a distraction from enjoying your 'zine.