Even the most jaded smart home cynic can see the use in connected security systems, locks, and doorbells. Our own David Ruddock recently called his new smart door lock "the most sensible smart home gadget I've used," and, by his own admission, he's difficult to impress. For those interested in getting in on the smart home doorbell/lock/security kit game, Costco is currently offering discounted Ring and Nest bundles, some of which offer year-long subscriptions to cloud services for storing security video.