We have a 2012 X5 35 diesel.
The rear sunshades and 4 zone climate control both came as part of the premium pkg in our X5.
Currently, I can tell you our rear seat climate control isn't used... We have a one-year old and a three-year old back there who obviously can't control it from their car seats nor would they know what they were doing if they could. In 5-6 years maybe they'll appreciate it but doubt it.
The rear sunshades do come in handy on sunny days. Our three-year old occasionally says "the sun's in my eyes!" and all I have to do is slide the shades up and wham!, problem solved!
All that being said, if you only care about personal satisfaction, and/or you rarely carry back seat passengers, or don't care about resale -- I say go with the color you like and don't worry about it!
At resale, with all else being equal I can see a future buyer picking the one with rear-seat sunshades and climate control OVER the one without them.