It could go this way. Let's look at public utilities further. NIPSCO surely has a monopoly here. And yes, they charge per use. There is no room for a second set of power lines running around. What stops NIPSCO from quadrupling their rates? Or more? Really, the only price limit they would face in the market is the cost of running your own generator. If they kept it just under that price, they probably wouldn't lose many customers. So why don't they?
Because public utilities have their rates controlled by regulatory bodies, that's why.
So if Comcast wanted to go this route, they'd have to have rates controlled as well. And they'd certainly lose a big portion of their profit because broadband data is a heck of a lot cheaper to provide to people than they want you to know.
There is finite space and weight to be held by a pole. But more importantly, the local governments are well paid to give them exclusive access.
No, actually I'm not. And I think roads are really the most accurate analogy for this issue.
Here's the issue, though: These cables are not privately owned. The physical cables may be, but the real value is the property that the cables reside on. Telecoms call it the 'last mile'. Getting a wire to each individual home is the truly difficult part of telecommunications, and in our current world it is only made cheaply possible by using public property that the roads currently sit on.
That property can only hold so many poles, and those poles can only hold so much weight. The market doesn't pick who gets to use those poles. The government does.
I want to run further with the road analogy, with some corrections. Imagine that the property underneath the road belonged to the locality, but the asphalt and traffic signals were owned by a private corporation (who gets exclusive access by paying off the government). We'll call this company Roadcast. There is only room for one road, obviously. Roadcast purchases this monopoly from the locality. There are tollbooths at each exit and entrance to the road.
Roadcast is a gigantic corporation. It also owns Walmart and various other stores. There is no tollbooth to Walmart... you can go there for free! Want to go to KMart? $100 toll. Why not? Why would Roadcast want anyone to shop at KMart if they own Walmart? Or maybe there is just permanent 'road closed' construction signs blocking your way to KMart. Oh well, better head to Walmart. They own AutoZone... prefer advance auto? Forget it. $200 toll.
This is exactly what Comcast is trying to do. They sell broadband internet but they also sell cable television. Netflix is eating into their market... what's their solution? $100 toll! In this case they're trying to charge Netflix that toll, but that cost will certainly be passed on to the consumer. This will only expand. Comcast has been buying all sorts of companies. I believe they now own Universal. You can do this sort of thing when you have a monopoly.
Back to Roadcast. The CEO hates guns. Bass Pro? $400 toll! Local gun shop? Permanent construction! Don't like it? Vote with your wallet and don't use their roads? Just stay home for the rest of your life?
Again, I don't have the answers for this. I'm not going to say NN is the best or only solution. I don't much like it either. But pretending that the free market will sort this out is just silly. This is crony capitalism, not capitalism. These people chose to get in bed with the government permanently, so I see no way to keep them in check other than through the government.
The problem with all this is you do have options. You have a preferred choice but that choice is wanting to optimize its revenue so that, among other things, continue to expand service and upgrade its capabilities. Comcast may indeed do all the outlandish things you suggest but will Dish, Verizon, or the various other wi-fi type ISPs that are out there?
One answer is to keep the federal .gov from further entangling itself in this. Additionally, let's roll back existing regulations that may be protecting the comcasts of the world and inhibiting those with better ideas. I see parallels in this argument as I do with the old argument about whether I perpetuate bad government by voting for the same old two parties or do I stand strong and insist by voting for a 3rd party I'm making a statement and standing for something.