With very little effort (compared with rolling out fiber in a couple cities) they could have completed the rollout of DOCSIS 3, and provided everyone with 343/143 Mbps using modems available today (zoom 5341j) and in a couple years when the 24 channel modems become more wide spread upgrade everyone to Gigabit operations.
In ten years will google fiber have cost them more than $45 billion? Will they have 1/10th the penetration that TW has today?