The main cool thing about having a gigabit is that you basically can't max it out downstream.
Ironically this is my primary motivator, I dont really need the bandwidth in terms of my impatience of downloading stuff, for me 80mbit/sec is fast enough.
But I have learnt that managing local downstream congestion is way harder than managing upstream congestion, very basic router side QoS solves upstream, not as easy for downstream, especially heavily threaded like steam which is like ddos'ing your own connection.
So been able to download of steam, without things like twitch falling apart, and without having to implement QoS would be nice.