Gigabit Internet Connections to Grow by 10X in 2016

Deloitte also predicts an order of magnitude increase in gigabit Internet, 70 percent of which will come from residential connections.

The number of gigabit Internet access connections will surge to 10 million by the end of 2016. 

By 2020, some 600 million subscribers may be on networks that offer a gigabit tariff, representing the majority of connected homes in the world.

That doesn't necessarily mean all 600 million will buy gigabit connedtions; only that they could.