Interesting to see discussion where people say <100 Mbps is enough. No. In Lithuania, general household internet speed is 300 Mbps. I'am with 1 Gbps and I can't imagine how other countries have average 10 Mbps per user. Wow.
It's like a car engine: it's better to have 3.0L than 1.2L, because when you need the power, you will get it.