For me, the turning point for Apple's sense of reason was when it removed MOSAIC from its screensaver options. (I believe Mountain Lion was the last OS to offer it.)

Why remove MOSAIC? No "logical" reason that I can think of. I can't imagine that it took up too much valuable space within the screensaver application. Instead Apple offered redundant variations of slides, panels, and mobiles. MOSAIC was way cooler than any of these.

confused