I think pre-internet zines are an entirely different matter. But they're not necessary anymore, and they're certainly a very inefficient way of making fic available. I don't understand why people are still producing them. Maybe it's some kind of snob appeal, either for the writer (fic on paper is more prestigious than fic online?) or for the reader (zine buyers as an exclusive club who get access to fic that other people aren't allowed to read?).