It's mostly a matter of personal driving habits ... Would you use it? How long do you plan to keep your car? How much do you drive (:: cost per mile)?
At the moment, adaptive cruise is my pet peeve. There will be a queue of cars 2-miles long in the left lane, all driving as fast as the slow idiot at the front hogging the 'passing' lane. Cruise has 'adapted', so everyone is happy! Que sera.
With all the new sensors, what you are seeing is the opening sprint in the race to perfect the self-driving vehicle. They are the eyes and ears of the CPU that will eventually manage it all. I'll probably never 'fly' in George Jetson's volantor, but I'll bet in 10 years my car drives me to/fm work while I read the paper (on the HUD).