I love my C14, and could not possibly conceive of any reason a person would pay double, or even more than double, for the 1600. No matter what.
On another note, cruise control seems to be very important to many. But for others, like me, not so much. Interstate highway travel would seem to be where CC would be of the most benefit. However, Due to the extremely high traffic volume in my part of the country, I try to avoid interstates if at all possible. And even when on interstates, traffic volume, stop-and-go, prohibits use of CC in many cases. Thus, even though I use CC on my car, I do not miss it on my bikes, and perhaps would rarely use it even if I did have it. Sorta like owning a convertible where it rains 350 days a year.