In a country (the US) where more and more people have unlimited data plans, what does it even mean to evaluate the cost of "1GB"? My T-Mobile plan gives me unlimited mobile data almost everywhere I go in the world for long periods of time and is in practice quite fast. How does that compare to a service plan that only covers me inside one country? What about in a country as tiny as Israel?
Freemobile in France also has (had?) complex rules covering what kind of connection gets you what kind of data (3G vs 4G connections had different data caps) and the French extended notion of "country". What are the equivalent of DOM/TOM for mobile operators in non-colonial powers?