What's considered normal currently with object geometries for items intended for sale, store the object geometry separate in the geometries folder or leave it included in the Prop / Figure library file?  Does it make much difference?

I ask in part because I'm aware a lot of Poser content is showing up in Second Life, from textures to object meshes, and 99% of it being used without permission.  Has that affected whether those creating content for Poser store the geometry in a separate file?