The Advantage of Using Animated Desktop Backgrounds
Using backgrounds that are animated is something that is advantageous for you. The first advantage is of course because these are more entertaining compared to static wallpapers. The entertaining value is obtained from the moving objects in the backgrounds.
Other than moving objects as mentioned before, there are other interesting things that can be obtained from this kind of background. The things are no other else but sound effects. These make the wallpapers to be interactive options too.
One thing that you have to remember is that backgrounds that are animated are not always suitable for all operating system. The information about the compatibility of the wallpaper is usually told in the same page where you download it.