While fuel cost is minor part of total flight cost (most is staff + depreciation), I wonder how much will be saved by a good satellite network. Being able to work on a plane at some point starts to pay itself off.

Fuel costs accounted for 23.7% of airline operating expenses in 2019 [1], I think that's more than a minor part - especially if you triple it.

1: https://www.iata.org/contentassets/ebdba50e57194019930d72722...