Ben Bajarin:

Carriers own a cell tower that they upgrade to provide faster service and broader access. That’s about it. They used to have much more differentiation than they do today. Some had proprietary devices or solutions. Some were known for better quality or were the only ones available. Those days are long past in most cases. Pricing is a particularly strategy that T-Mobile and Sprint are trying to compete with, but they have simply embraced their “dumb pipe-ness” sooner than other carriers.

He’s right.