Medela in style starter kit or pay $95 and get whole thing with tote or backpack and everything else?

Maya
I am getting breast pump through my insurance and I have an option where I can get starter kit for free or have an upgrade option when I pay $95 and get whole thing with tote or backpack with additional bottles and battery pack (still not sure if it means I can use it with batteries) 
If you have this pump please advice what would you get. 
Thanks! 

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