run time shared library

Hi.

I use the same library "food" (which contains apple.swf, orange.swf etc... ) for ten different games.

I DON'T check the run time shared library box on export.

The ten games import food.swf to use it's assets.

I thought that on downloading food.swf once then it was cached so it would always be local ie: why would it be advantageous to have used run time shared library.

Cheers