There is a huge problem in this market. You simply can not find a new 35mm SLR without help. Try entering 35mm SLR into a web search. You'll find the EOS 1V without too much trouble, but nobody is buying THAT beast for a high school class. The only inexpensive 35mm SLRs in production today are the Vivitar and Nikon intro models, and you need to ask for help to gain THAT knowledge. I have no doubt that many camera stores don't know or don't care about those two offerings and will happilly tell the student (or his mom) that you really should buy a digital SLR and then get a used film body (from their pile of used junk) that you can use for class and throw away when you're done.