How are carriers going to kill cable with 5G? Won't they still want to charge $10/Gb? If that's the case, 4G is already faster than a lot of people's current connection at $50. If you use more than 5 Gb per month, it wouldn't make sense to go full mobile.
For example, 30 minutes of TV every other day is already pushing 8 Gb...
When there are competitive spirits at work, prices magically drop. I pay Spectrum $69 for 100/5 service in my city, which has no other options. My brother pays $45 for 300/30 service 4 miles away in a suburb where Verizon has chosen to compete as there are fewer poor people.
Right now there's a 5G land-grab going on, with hundreds of millimeter-band 5G poles being dumped everywhere. I assume that's for a wireless fixed ISP service, as it doesn't add value for normal mobile service.
For example, 30 minutes of TV every other day is already pushing 8 Gb...