The above is an invalid comparison. A better, more objective measure is linear population density.
Miles of roads in Texas: 152,054 miles
Miles of roads in Finland: 65,617 miles ()
Population of Texas: 25,674,681
Population of Finland: 5,375,276
Linear population density of Texas: ~169 persons per miles of road
Linear population density of Finland: ~82 persons per miles of road
Ergo, it is cheaper per head to provide wireline telecommunications services in Texas than in Finland, when building out to the whole population, as the linear population density is higher in Texas and most, if not all, permanent residences and business are accessible by road.
() This road mileage does not include private roads in Finland. Including these roads would further lower the linear population density of Finland, but these roads were excluded from the calculation as the majority of the private roads are access roads to non-permanent recidency second homes and timer or agriculture roads.
This really isn't a good measure since roads will be denser in urban areas and less dense in rural areas, thus leading to exactly the same issues as directly using population density.