From what I recently read, besides 10x bandwidth speeds, latency with 5G will be as low as 1-5 milliseconds compared to the 100-300ms of 4g LTE. This means that as long as there is no loss of connection, people will be able to do things such as drive a car remotely from anywhere in the world as if they were in the car itself. Surgeries can also be safely done remotely with the aid of robots. As you said, the competition will drive down prices pretty fast. I think the lower latency with being the most significant quality. Just imagine sitting in another country and putting on a headset thingy to go pick up your daughter from school or drive her there!