In many cases, the issue isn't cost to run but cost to maintain.
Consider South Africa, where the largest threat to installation deployment is inability to police the entire deployment coupled with massive wealth inequality... People just dig the cables out of the ground for the copper. Cellular radio has ameliorated the issue some (harder to steal the repeater antenna out of the back yard of a shotgun-owning resident), but Internet can still be a challenge.
Consider South Africa, where the largest threat to installation deployment is inability to police the entire deployment coupled with massive wealth inequality... People just dig the cables out of the ground for the copper. Cellular radio has ameliorated the issue some (harder to steal the repeater antenna out of the back yard of a shotgun-owning resident), but Internet can still be a challenge.