Most people are under the impression that their IP being public is somehow super dangerous, and that “hackers will attack me” if it ever gets out. So likely “all the attacks against my entire network.”
Edit: Secondary thought, they legitimately have unsecured endpoints on their IP, and are hoping no one will notice if they aren’t handing out their IP to others. Still incorrect though.
Eh? Their bog standard device cost is usually pretty on par. And Apple definitely isn’t charging you double.