As a kid, the first zine I ever participate (and ever read) was photocopied at the town-hall office. We were a no-benefit show promoter (wich sometimes raise public funds in france) and we run a music-distro so we made a fanzine from 2000 to 2006 to promote our shows, a little catalog of the distros, a lot of interviews, reviews, essays... It was copied on the "Department for Culture and Entertainment" of the town-hall, so we never paid for the printings and we made from 200 to 600 copies I guess. I didn't remember, all I know is that : it was free. (and this is how I discover the zines).
When I first wanted to do one by myself, I found that copiers around are truly expensive (€.10 per copy, at least), and I never want to put ads on it so I forgot till I moved to a biggest town, and copy-shop who provides copies from €.04 to €.03 wich is cheaper, and better because they're to busy, so you can copy it all by yourself (but it is pre-paid cards so you can't steal any copies...)
Well, how expensive are your copies in the places you live ? How much do you pay for it ? Can you still steal some of it to reduce the cost ?