I have a RF audio-only baby monitor. Our house is quite big, and during our twins' first ~three months, it was hard to hear them from a different room. After the fourth month (they are six months old now), we haven't bothered to connect the monitor again, as their lungs are strong enough for us to hear whatever happens.
And yes, we mainly used our monitor to quickly go check on them, to make the distress time as small as possible.
Now, continuously streaming a video feed of my babies over the Internet... What good would that be for? Maybe only for me to ensure a hypothetical nanny didn't abandon or mistreat them while I'm at work — But I'd have to be always on watch!
What kind of reaction could I as a parent have were I monitoring my kids away from home? What use would this really have for my kids' safety?
The IoT is coming, I know, and we will soon have intelligent flowerpots. The cats' litter box will tweet every time a cat goes to pee. Yay for tech!
But sometimes there's no need at all for more intelligence in our devices. I want a baby monitor to be reliable, easy to check and fix... And not dependent on issues that might break (i.e. my Internet uplink being down for some minutes). Sometimes dumber devices are more intelligent.