2015 Sonata owner here. On one hand I've been eagerly awaiting this for over a year now, assuming they even keep their word on 2015 compatibility. On the other hand CarPlay will be useless to me if it doesn't support Waze. Or can you still run arbitrary apps on the phone itself while it is controlling a CarPlay device?
That's up to Waze. 3rd-party app makers can support CarPlay. Some already do, and I'd hope Waze will be there soon as CarPlay (and AndroidAuto) gain traction.
Thing is when most consumers hear the name "Hyundai" they don't associate it with the likes of Mercedes, BMW or Tesla. The name is generally associated with affordability.
As shown, they have a wide range of prices and vehicles, like most other major car manufacturers, despite your opinion that they only sell "affordable" cars.