Looking at purchasing an Arlo system for the first time, but worried about how the 3 pros and ultras are on a subscription base. Is it really an issue? I am use to more traditional CCTV wired kits with TBs of storage you can record 24/7 for like a year. How is everyone backing up there recordings? Is it worth the setup cost/subscription? Does the pro 2 still come with 7 days free?