Back in the late 60's I visited a local photographer showing his slides from a trip to Europe. He had a Leica projector and the images on the screen were AMAZING, bright, clear, full of color, much better than the Kodak of the time. Of course, the difference was the projector lens. The Leitz lens was way better than the Kodak. As for price of a used Leica projector? it depends on if it is actually working. Leica projectors are very complex, way over engineered and almost impossible to get fixed. Decades later (the 90's) I found a broken Pradovit in a pawn shop for $5 in their junk bin. See if you can set up and compare the Leica to your Kodak.