I would have them if my rear end cost as much as RR's it's down to personal preference at the end of the day. I can never understand why you would need the radio controls on the steering wheel when they are less than a foot away but im sure there is lots of people who feel they need this its down to what you can afford to spend on luxury's and what each individual want's. there all good if your happy. 
....It costs a lot of money to make my rear end look cheap! (to borrow the words of Dolly Parton)
Personally I never play music or the radio while driving but I find steering wheel controls of the volume of my Alpine SatNav (which my sound guy rigged up for me) to be invaluable. As I do with the paddles - No need to take hands off the wheel to grope around for any knobs.
