I've considered it at some length, this newfangled "IoT" (Internet of Things), and I'm in favor of some aspects, and quite opposed to others. Being able to control my alarm, thermostat, some of my lights, and see what the camera sees, with my smartphone, all sound like very good ideas. The front door itself, however, will remain low-tech, key-only locking.
I have no particular qualms about big brother in terms of my dwelling; what big brother demands of my money and how that money is used, is a far bigger issue to me. My major qualm is that I don't want a hacker to be able to unlock my frontdoor by hacking my phone. The camera, and various other safeguards, should be safe enough -- we don't live in the inner city or anything like that, and what security we have should be sufficient as a deterrent. It's really more of a convenience and peace-of-mind protector than anything else -- we've needed a new thermostat since we moved here; the one we have now is programmable, but uses characters that are damned nearly invisible, gray on gray LCD and TINY, and its default programming is a huge pain in the ass -- the Nest will learn our habits and program itself accordingly, and should actually help us both save money and be more comfortable at all hours. The fact that it's basically free save for the installation cost, that's fandamntastic -- they cost about $250, and though my husband is terrifically handy, he is neither an electrician nor an HVAC technician, so having a professional installation is just what we need.
Cybernetic upgrades for my carcass would be awesome, but I ain't holding my breath.
Andria