NFC: not for consumers. For most people, it's a solution to non-problems.
I disagree. It's a real timesaver for location based automation tasks.
...that doesn't sound like much of a timesaver versus hitting a button or two -- or even doing nothing, as in the case the first example because my N4 already automatically connects to my home WLAN when I arrive. And even then, the average person has to be willing and able to configure those processes, not to mention aware that NFC even exists and what it can do. Most people can't even program their home's thermostat. I've never programmed mine because it's easier to remember to adjust it when I go to bed or get up. If my life gets so complicated that I don't have the time to do or remember to do such simple things, then it's time to simplify my life rather than buying more stuff to deal with. To each his or her own.
I'm not sure how many leave their WiFi turned on all the time, as you would have to for your phone to autoconnect when you get home. I for one rarely use the WiFi on my phone as I pay for unlimited data. But there are those who use WiFi a lot to save on data charges. Some of those save battery as well to get through a busy day. Keeping the WiFi from searching saves battery at the cost of constantly turning WiFi off/on as situations warrant. Those users are repeating a task many times over each week and can benefit from automating it when able. I used it as a popular example for the OP's sake, not as a task I'll be implementing.
Also note the first Tag I wrote was for the GF. She uses her Hotspot to power her laptop quite often. I don't... Was it wrong of me to make her life a bit simpler? She was pretty appreciative of the result.
Yeah, specifically the last example. My in-car/leave-car tag also enables/disables my phone's lockscreen. Obviously the more things you need to happen, the more time a tag will save. If you only have it doing one thing, it will not save you much time.
LOL controversy.
I paid for NFC so I'm going to use it.

It's not so much about saving time as exploring the device capabilities.
It's fun, interesting and cool.

It doesn't hurt anyone. O
Most people don' know what NFC is capable of so CoMoNexus has a point, but it's a point that goes toward exploring the options - not ignoring them!!!