Verizon has answered T-Mobile ads aimed at the data limits war. T-Mobile says it has a newer network and that Verizon needs limits because it’s 4G LTE network is 6 years old. Verizon answered me with this tweet, saying its coverage is wider and actually more advanced technically, link here.
What would be important would be extension to another company anywhere Verizon doesn’t have service. (Oh, yes, there are no cell phones near Green Bank, W Va).