We do. GPS is actually more accurate. That said... 1. GPS requires a clear line of sight to the sky. Doesn't work for indoor clocks. 2. Shortwave receivers ar

We do. GPS is actually more accurate. That said... 1. GPS requires a clear line of sight to the sky. Doesn't work for indoor clocks. 2. Shortwave receivers are more energy efficient. 3. Redundancy is a good thing. Just in case GPS (or your receiver) has a problem. 4. WWV isn't just time. It also serves as a frequency reference for radio stations. It also transmits marine weather alerts, space weather (solar flares, etc.), and GPS system health updates. (Though apparently the marine weather notices are being discontinued in Jan 2019.)