My mother-in-law recently gave me a Kodak slide projector and 9 trays (local Chamber of Commerce was cleaning out it's basement, she's an employee). I don't think I need all 9 trays, but since I've never owned a projector, I can't be sure. Two didn't come in boxes, and fit in the projector's carrying case, so I'll keep those two, but should I keep the other 7 or sell them? Do the trays wear out or break easily?
Chris