They do make internet convenient and somewhat reliable for places that had no other options (on my boat, etc.) But I doubt they can displace wired or microwave

They do make internet convenient and somewhat reliable for places that had no other options (on my boat, etc.) But I doubt they can displace wired or microwave relays, and why would they? On-earth systems are much cheaper to maintain even if the cost to LEO reduces by another order of magnitude.