One of my hobbies is collecting 16mm movie prints. I like B Movie style films and currently have about 30 titles in my collection. Most of the titles I buy from eBay, but I have been more successful with titles from film libraries, direct from other collectors and even companies that sell DVD's. In fact, I think I will stay away from eBay now since there have been several unpleasant sales and buys recently, and quite frankly it is not as enjoyable as it used to be.
I joined 16 mm Film Talk a few years ago and thoroughly enjoy the forum. If you are a collector, check it out (16mmFilmtalk.com).
Tonight I checked out my copy of Santo contra los zombies.