My only experience with factory controllers is with Chevy. It was way smoother and easier to set up than any aftermarket one I've ever used. There's no way I would get a new truck for towing and not get the built in factory brake control. It's just so smooth and well integrated with the truck's brakes.
As for the tow package, I don't understand why anyone buying a truck to tow wouldn't get every last tow related package available. Your paying what, $40,000 at least for the truck and an extra $1,000 is a big problem to get some features you need anyway? I don't see the logic.
