Bear in mind that connection speed sold “up to xx mbps” is largely irrelevant to the actual cost of service. It’s just the sales model that most ISPs have adopt

Bear in mind that connection speed sold “up to xx mbps” is largely irrelevant to the actual cost of service. It’s just the sales model that most ISPs have adopted over the last few decades when bandwidth really was constrained. Comcast’s costs are its people, truck rolls, equipment and infrastructure outlay, and advertising. Convincing or requiring you to pay double for 2x the speed is just the way they can increase cash flow.