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Smart devices are turning out to be a poor investment
(www.androidpolice.com)
This is a most excellent place for technology news and articles.
For me, a doorbell that is more than a doorbell is a perfect example of tech built to fill a need no one had.
To be fair, I use a simple smartlock whose only purpose is so I alone can unlock my bedroom door without needing my physical key duplicated for others to enter at desired times.
To also be fair, I have a hodgepodge of smarthome lights and plugs linked via ifttt that I am now worried will not have any replacement option in 15 years. Maybe I made a mistake, but I do actually have a need to rely on a smartswitch to turn off the lights when I leave home.