in my opinion it's one of the most important feature. i use this in each show. all my catalyst media server are backstage in the near of video projectors. then we have short vga or dvi cables directly to each projector and just one network cable to foh. and it's much easier to install one cat5/6/7 cable as 2 or more 100 metre rgbhv cable.

then i use file sharing for content management, apple remote desktop (but turn it off, if you're in showtime - it cost a lot of performance) and secure shell. all with just a minimac or powerbook.

and you can shutdown all computers from front of house with a mouse click in catalyst;-)