These are perfect examples of things that at scale should become cheaper but don't. Yes, there's more of it and that cost something to deliver, but the cost of delivering bandwidth per Mbps has decreased drastically (like, by 80+ percent) while the price of having a plan does not in any way reflect that. Likewise, the cost of delivering cell phone service has gone substantially down but the dollars-and-cents price of having a cell phone more than tripled between 2006 and 2020.

Sure, they're better and faster than they were, but there's no good reason for them to cost more, other than you have money and they want it