Do Planets need Cargo facilities?

[Triumvir Emphy]

What could be a more enticing trap than a home world with no number in the top left corner, enemy assumes no ship's, no sat's and no bases. But as sneaky as you are you have built one or two extra storage facilities and have them brimming with fighters and weaps platforms. Now he can assume you have a certain kt worth of defenses, but as most people don't use storage facilities he will be sadly mistaken on the size of your defense.