Yeah, I'm on a Ziply 1 gbps plan and I probably have less than 2 hours of downtime per year. Usually, when I DO have downtime, it's just a hiccup that I resolve by rebooting the router, and when it finishes, I find myself with a new WAN IP. It's like my DHCP lease expires but my router doesn't know.
I don't even know what I would do with 2 gigabit, let alone 7 or 20. Even with gigabit, the only time I really take advantage of it is downloading a new game. Streaming video requires only what, 20-30 megabit?