Aside from Apple, every laptop maker is competing on price. 4G radios add $50 or more to the cost of the device. The only way they would include one is with inc

Aside from Apple, every laptop maker is competing on price. 4G radios add $50 or more to the cost of the device. The only way they would include one is with incentives from a network that would include some offer with the laptop. None of the networks are offering laptop manufacturers such incentive right now, so they don't build them. Why are cell companies not offering incentives to produce laptops with cell radios? Because they are just barely keeping up with current demand. Only major metro areas have 4G coverage, and each tower can only handle a couple dozen active data connections before saturating its uplink. Older 3G towers that haven't been upgraded can still have only 50MBPS links, which means they're very limited in how many clients they can serve at once. Retrofitting the old equipment and building new towers takes time; they have to manage demand so that it doesn't outstrip supply, which is why we've seen lower data caps and higher prices as LTE is rolled out, instead of higher caps and lower prices.