Packages in responsive Directory press

I am a bit confused on creating packages. In the new responsive directory theme all the things ( like google maps) are an add on regardless to which package is chosen. So I am confused if there is any advantage to having packages? The add ons like google maps etc can be switched off but they are either on or off , not package assigned. Hope that makes sense? Plus if I have put this in the wrong place sorry but I couldnt find responsive directory in the list