There's a smart version of nearly every large appliance in your home. But what about your kitchen sink? That's coming online, too, with Kohler's Sensate Faucet. Starting at $875, this kitchen faucet ...

Reality We didn't find much difference between a $115 stainless-steel sink and one for $420, or between an $80 faucet and one for $600. Expensive, thicker-gauge stainless didn't n ...