I think there's a strong chance this is a case of it creating a whole new market though.

There are people whose current behaviour/situations will happen to benefit from this, and that may be a niche, but seems like there's a really solid chance many more people actually will change their behaviour in response to this being available. That's how disruption happens.

To be honest I can easily see the default changing if the service is good enough. I mean it seems like you basically get most of what is good about wired plus a whole load of extra previously totally unavailable benefits. For a price, to be sure, but that'll come down.