But at the same time, everyone is moving away from desktops and certainly away from wired connections. Most people are using wi-fi in the home, and more laptops, tablets, mobile while desktops are dying. Wireless is still only at 200mbps. It's going to have to get faster for these speeds to mean anything for the average consumer.
200 mbps is plenty. Problem is that real speeds are mostly lower. Note that most office networks still operate at 100Mbps and are doing just fine. Arguably so though.