This.
If I were married, and had a bunch of streaming, gaming, teens or something, then I could see the need for Gigabit.
Or maybe, work-from home, remote-desktop, VPN, that kind of thing, I could see. (Although, you'll need a "dedicated appliance" to run a VPN tunnel at Gigabit line speeds, consumer routers can barely route/NAT Gigabit, even with hardware NAT. My AC68R only does 300Mbit/sec using software routing, without VPN overhead. And that's a dual-core CPU in that router.)
Still, it was nice to have for a while, but largely useless... unless you're downloading BIG files, from Microsoft.com or Steam, it's not going to help other smaller, more-congested servers. Most Linux ISOs, from SourceForge, etc., still only downloaded at 10-50Mbit/sec. Torrents of Linux ISOs couldn't max the pipe either.
So I decided that paying $100+ per month for a Gigabit line was folly, and signed up using a new customer promo for 100/100 from FIOS, $39.99/mo. For a single guy like me, on a limited budget, that's way more my style.
I'm thinking, in the very near future, all local ISP pipes are going to be Gigabit, technology permitting. Then they will just charge us by the GB for transfers. (Hopefully only pennies each GB.)
That would seem to be a fairer way to charge for internet.
(Shades of "the phone company" charging by the minute for LD calls. Isn't that why we invented the internet?)