Blink announces a 'cheap' video doorbell

Blink now has a video doorbell to go along with its lineup of smart cameras and home security devices. Best of all is the price: $99 for existing Blink customers who already own a Blink sync module, or $129 for everyone else. For that price you get two-way audio, motion detection, night vision, unspecified "HD video," smartphone video alerts, and that long, two-year lifespan off a pair of AAs, just as you'd expect from Blink.
There was a time when you could buy a complete doorbell system for les