(We bought one for a pretty tech savvy 89 year old who we thought might actually get practical benefits from IoT plugs as well as enjoy the novelty value of something that interacts vaguely like a human since he doesn't go out so much these days. But that's something of an edge case)
The Baby Boomers are retiring in droves right now. It's becoming less and less so (in the USA).
Throw in that it was mentioned in all the black friday deal discussions and it was marketed to anyone visiting amazon.com for holiday shopping... well, they were going to push units regardless.
My wife didn't like the idea of having a microphone in our rooms, now she asked me if i don't want to buy another one.
And yeah it is only used for timer, reminder, light on/off and music.
I love it too.
(Edit P.S.) Don't get me started on Unix REPLs suitable for young kids. A simple for loop still reads best in BASIC.
When she actually saw it in action and found out I had only paid $50CAD for one, she told me to get another one.
I've only had Echo since Dec 5, but we're both becoming dependent on its convenience.
* Novelty value, it's a fun idea. It looks cool to buy an "edgy" product for your nephew / niece etc.
* The marketing team worked hard to direct prime customers to buy one for their family / friends as gifts.
* People are out of ideas and it's something new, novel and affordable.
I really don't think people put much thought into presents in general, if there is something new, kind of affordable and in your face, it's a given you're going to buy it.