We could all pressure our local governments to provide municipal internet. Many cities have already created services that are much faster too.
What they do is they build public roads. You wouldn't allow a company to build a public road, and then go:
"Safeway trucks get a free pass, cause we have a deal with them; everyone else, $5 per vehicle. Except for you, Best Buy, you pay $25 - except Saturday and Sunday, when you may not pass at all."
I agree with your position, but I think your analogy is tortured.
Secondly, if you think the "no trucks over 3 tons" signs impinge on your "liberty", then go ahead and drive a 25 ton truck down that road, see what happens. I'm having this discussion about "liberty" versus common sense with my 3rd grade son all the time.
I recommend blind trust in nobody, as a rule. But with the government, at least there's the option of voting against the current office holders. Whereas when a Comcast-TimeWarner super-juggernaut takes over the whole market, what are my options? My lawyers versus theirs? Yeah, that would end up "well".
Or I could choose to not buy, therefore starving myself of the resources they provide. That's even better!
EDIT: This is the behavior of "rational economic actors", IMHO. If the benefit you get from the expensive Internet they offer is bigger than the cost, it's rational to take it. If it isn't, then it's rational to pass on it. If enough people do this, then the corporation realizes they get more customers by lowering prices (if they also act as "rational actors").
The 'rational actor' model is to economics what spherical cows [1] are to dairy farms. It is a simplifying assumption that is useful for certain general cases, but if you ever find yourself depending upon it in an argument, you're working at too shallow a level.
In this case, though, even if the rational-actor model were valid, you'd be wrong. In the case of monopolies and oligopolies, the rational-actor approach is to, basically, let yourself be screwed by the monopolist.
For example, in my case I'm in an area where I pay more money for worse broadband (ADSL) because I hate monopolists like Comcast. From an economics perspective, I'm an irrational actor, because I'm not optimizing for my own interests.
Work and school are economic investments with concrete returns; financially, you get more out of Internet access than you pay. If you didn't need Internet for either of these, and just used it for Netflix or World of Warcraft (or any kind of recreation), would you reconsider paying for it?
One fat wallet, one million votes.
Makes me wonder if it'll have to get to the point that a municipality says fuck you to both the broadband provider suing them and the county/state courts that allow such nonsense to implement their broadband anyway.