It probably depends on the school somewhat (at Davis we have so many amazing online dissection videos and virtual microscope sets, that it wouldn't be necessary). Something to keep in mind, too, is that if you weren't planning on buying one anyway, you could probably ask a friend/lab partner who does have one if they would send you any photos they take (the wonders of digital cameras!). If you are thinking of getting one, I have an Olympus Stylus that is AMAZING and I would recommend it to any health professional. It is waterproof and the cleaning instructions are literally to soak it in water for 10 minutes while turning it on and off repeatedly. It isn't the cheapest camera out there, but it is great for dissections, necropsies, etc., because it can get nice and juicy and be fine after a quick rinse in the sink! (I actually threw up on my camera one time - I was in Alaska aerially tracking wolves and let's just say my stomach wasn't totally up to doing tight corkscrews in a two-person plane. It was nice to soak the camera in the sink for a while and not have to worry about the vomit causing any permanent damage.)