Mobile carriers, at least here in the US, are extremely limited with backhaul. They can support high burst speeds, but they can't handle high traffic loads. T

Mobile carriers, at least here in the US, are extremely limited with backhaul. They can support high burst speeds, but they can't handle high traffic loads. That's one of the reasons why the data caps are so low on mobile (e.g., 5GBs) vs broadband (e.g., 500GBs). Otherwise, yes, a lot of people would ditch their cable/DSL and just use a mobile datacard/modem.