You don’t understand. I’m not talking about the price of the device (which is extremely attractive), I’m talking about the price of the data plan.
I’m not sure how it is in the US but in Germany you just get a second SIM card. Not a second data plan. That would be stupid. But LTE is extremely expensive and has little to no coverage. You wouldn’t get more speed, you would have to pay more first for a very limited benefit.