Comment by asteroidburger

I pay $25 for my backup 5G internet - but unlike a mobile plan, it's actually unlimited at 300mbps, and I don't have to resort to TTL shenanigans and such to use it for my whole network. It's just plugged into one of the ports on my router, and provides it with real public IPv4. Ran it for a few days when the fiber dropped out and consumed 200GB without complaint from either myself or the ISP.