This can be solved by selling plans by speed instead of data caps; ie, you pay for a guaranteed speed (like 1Mbps) and can use it as much as you want. The more

This can be solved by selling plans by speed instead of data caps; ie, you pay for a guaranteed speed (like 1Mbps) and can use it as much as you want. The more speed you buy the more expensive it gets, with the full LTE speed being crazy expensive as you'd essentially be buying out the entire tower in that case (but then again, who needs 150Mbps+? I'd be happy with a stable 10Mbps to be honest, for mobile there is rarely a need for more).