Home automation - why?

I am failing to see the interest in having tons of IOT devices to manage, connect, segment, etc… Why would someone want to do it? To be clear, I have friends deep in it but… I still don’t understand. Can anyone try to explain the magic I am failing to see?

Edit: Thank you all for sharing your experiences! The ones I found more interesting are those that can easily translate in reducing or tracking consumption. The rest I hear but makes more sense when I look at it from an hobbyist perspective.