When we first installed Win95 (upgraded from Win 3.1 WFW) at work, everybody's PC was making wonderful 'whizz bang pop whoosh thud' sounds with virtually every mouse click to open/close files, etc. It was like living in a zoo or jungle...
I rapidly also discovered that when the sound files started to play, the whole damn PC (385/486 vintage boxes!) hung doing whatever it was supposed to be doing to play the sound before it would proceed. Disconnected almost all the sounds, and to this day, I have very few sound 'cute things' - just alerts for sounds (I have a nice female voice saying 'you have mail'!), no background image, (grey or slight off cream), no 'web folders' crap, etc. Even just have a standard style pointer, etc.
You can have too much of a good thing, and what is worse, when you change to a PC set up wildly different, your productivity drops enormously for a while...