> It's easier to put in lines in rural and suburban locations than it is to put lines in urban areas
This is backwards in my experience, but I probably have a different definition of urban from you. In my area, the suburban area has mostly underground lines that pre-date fiber, and getting fiber is probably not ever happening. Comcast is all we got. But if I drive 15 minutes into the city, there are fiber lines on every pole, and I could choose from a couple different providers.
It'll depend on the area. From what I've seen, it appears that a lot of cities are eliminating utility poles and are burying all their lines (except for high voltage power).
An urban buried line will be harder than a suburban or rural buried line. Pole access is easier in both situations.
Utilities like buried lines because people will cut and strip overhead lines looking for copper.