I noticed today that many of the local libraries in Michigan, at least, Genesee county Library system today, are selling 16mm projectors dirt cheap, ie 15$ and 25$, with film movies 4,96 and up to 15.95, if I remember correctly.
I got a phenomenal Eiki projector for $10 on eBay (plus $25 shipping, although perhaps I shouldn't mention that ...). Built much better than the usual Bell & Howell stuff I found at most schools.