In my opinion now after i have a car with so many toys but without the RSR , i would choose any of them , depending on the price , mileage , condition . My LWB still has heated and cooled seats with a bit of recline in them , rear dvd screen but that is played from the front DVD and all the climate and audio controls from the armrest in the back + blinds .
It depends if you would really have someone to use them , for example kids , but other than that they will not be used much . Also in case someone use them you always need to remember and check that they have not left the heating or the cooling of the seat on , very different temperatures . You either check them every time , either disable them from the front console every time someone has been in .
It will be nice to show it off to friends every time but depending on your personality you might also be annoyed as they might leave a bit of mess every time when they do it .
Go , have a look at both , drive them if possible and chose after , don't set your mind on just one and miss the other .