Satellite service is more likely to replace cell. If the latency gets low enough, and capacity gets high enough, we can expect the Starlink/T-Mobile partnership to expand beyond emergency services. I'd certainly trade speed and latency for total planetary coverage.
No it's not.. It's far most cost effective to deploy cellular. Fiber in the ground to a tower will easily last 50 years. The radio hardware will need ongoing maintenance, but it's still far cheaper than launching 30k satellites into space with a lifespan of five years.
