The problem relying on prepaid/MVNO to save us, is that MVNOs still depend on the infrastructure of the big three.

So if the big three are able to set new [higher] price standards for their own customers, eventually they will increase wholesale rates for third parties piggybacking on the network. This will of course eventually trickle down to prepaid/MVNOs.

One of the many reasons why the Sprint acquisition was anti-consumer.