I don't think I fully understand the argument for net neutrality. I try to think about it from a few different perspectives:
Broadband intensive services like Netflix:
I think a problem that they face is that their connection is often slow, not only intentionally, but also because developing infrastructure is expensive. Why would an ISP bother building out the infrastructure if they can't extract a higher value from those that it most benefits (Netflix)? In fact, Netflix thinks it's worth it to pay Comcast directly. If that was not beneficial, I don't see why Netflix would have done so. Sure, they would probably prefer to get that service for free, but it must be mutually beneficial for both parties to go along. If Netflix were not allowed to make sure a deal with a company like Comcast, would that really benefit anyone?
Smaller Websites:
There is the risk that ISPs try extracting a toll but I think it may not be worth it a lot of the time for the ISP. I think this fear is overblown, although I could be wrong.
Consumers that don't use broadband extensive services:
Why should those consumers be subsidizing those that use broadband heavy services?
Consumers using broadband extensive services:
Why should Netflix not be allowed to help subsidize the cost of providing broadband? Why should this fall solely on the individual?
Government:
The obvious concerns of more governmental control of the internet.
I could imagine a scenario where Netflix was not allowed to pay Comcast directly for increased bandwidth. Instead, Netflix would spend that money to lobby politicians to force Comcast to build out their infrastructure. I don't see how that's a better scenario than currently exists.
I think a better solution to very little competition in ISPs would be to decrease the barriers it takes to compete. Further regulation would only increase the barriers.
Netflix paying Comcast:
http://arstechnica.com/information-technology/2014/04/after-...
Starting an ISP is Really Hard:
http://arstechnica.com/business/2014/04/one-big-reason-we-la...