[vel0city]

You're thinking of IoT as only personal home electronics. IoT might encompass a lot more, such as more connected fleet vehicles, infrastructure pipelines (water, gas, sewage, etc), traffic systems, and potentially a lot more.

[darkpuma]

Infrastructure can be wired, and there are only ~260 million registered road vehicles in America (most of which are not fleet vehicles.)

[vel0city]

Infrastructure can be wired, but it is also extremely costly. Just ask Google the costs of trenching up city streets to lay new cable. True, new infrastructure could be built to handle this new cabling requirement, but then we're at the same place we're at now with such tasks being prohibitively expensive for anything currently deployed.