Price drop! Amazon has the Blink Video Doorbell w/ Two Outdoor 4 Cameras, Sync Module Core (2 color options) on sale for $62 with free shipping. 1-Camera System is $38, 3-Camera System is $95.

The 2x Outdoor 4 XR Camera System (better battery life) is also on sale for $80, 4x XR Camera System is $140,  6x XR Camera System is $205.