I am still bitter they got rid of the "Mosaic Screensaver" back in the Lion's day! How hard could it be to have updated it along the way? Instead we get those 12 "photo" jobs that vary little from one to the next. Grrrrr!
Similarly...
I use Flurry as my screensaver...love it particularly because I imagine it as a fantastic alien creature living behind my MBP's screen, and through Panther, it included an infrequent effect that made it look as if my alien was "charging" at the screen in an effort to break free, which made the illusion all the more real, but that effect disappeared in either Tiger or Leopard.
I've always wondered about the logic behind that change.
Did others find it as disconcerting as I found it fascinating, and request its deletion?
Aside: I often watch Flurry instead of iTunes Visualizer; it's so dynamic that it pretty much keeps time with the music, and watching it is relaxing as opposed to the "work" that goes into watching Visualizer's almost overwhelming assault on one's eyes.
I'm not a fan of Visualizer's evolution; its initial presentation was much easier to watch than its current incarnation.