If you look at your cable contract though that's not what you're paying for. You're paying to be part of Comcast's network in your area, which happens to be connected to other networks.
Same goes with speed, they aren't promising you 50mbps download from the internet, they're promising you that speed connection to their network.
Same goes with speed, they aren't promising you 50mbps download from the internet, they're promising you that speed connection to their network.