If you have a connection for a gas stove, you are paying for the connection and the ability to use it. If I traveled for a month I'd not be using my water connection, but it is still connected and it is still available for use with the turn of a tap.
And how is that different from the fast Internet connection?
You want another example? I have lots! Last month my council decided to fund a new park. By your standard it should be a commercial park with fee paid each time you step inside. You see, not everyone will use this new park!
If you think the fees will go down, you're naive. Since your argument depends on an impossibility, your argument fails.
Not true. My new housing development paid quite a bit of money to connect to the electric grid. Once the connection fee was paid (about 4 years) the monthly electricity bill went down. So yes, it happens a lot. So your argument fails.
But just for the sake of argument, let's assume a miracle happens, a green unicorn runs the city and the fees go down. Should newcomers pay the lower fee? OF COURSE. Two reasons. First, their tax dollars paid for the initial build, too.
Certainly. IF the buildout was financed from taxes then everyone is entitled to the same low fee. However, what if it was financed only by the initial subscribers? What should be done in this case?