There isn't anything to do with that much bandwidth.
It's another space where there's a consumer product and consumers have been taught that the bigger number is better, so you advertise a 1000Mbps service and consumers think it's worth more than your competitor's 500Mbps when in reality although those numbers are "true" they're irrelevant.
Eventually consumers get jaded and learn to ignore the number, the way you'll see nobody cares when you tell them your "hi res" audio is 96kHz at 24 bits - CD audio with 44.1kHz at 16 bits was more than enough, more isn't better for ordinary users so they eventually learned to ignore it‡.
I had Gbps Internet access in 1998, and in 2015 I was buying new service for my new home. Should I buy the cheap 40Mbps package? A bit extra for 80Mbps? Or spend a lot more for 1Gbps? And I knew, which most consumers don't, that it didn't matter, 40Mbps is fine, once in a while 80Mbps would be slightly better (maybe a new video game downloads in 10 minutes rather than 20 minutes) and 1Gbps would just make some numbers bigger that I'd show off once in a while but make no actual concrete difference. So I bought the 40Mbps service, no regrets.
The main practical things 1Gbps will do for you is avoid buffer bloat since there's less need for a buffer, but you could also do that by just buying hardware that doesn't have buffer bloat.
‡ If you are a recording studio you might actually want 24-bit, and maybe at a pinch even 96kHz, but ordinary consumers needn't care. Likewise somewhere like a school definitely wants 1Gbps networking, but my mother needn't care.