is there one option that you wish you would have purchased?
 

for me: sport package, and comfort access.. i didnt get sport because the 20"s were not offered for the 3.0 sport package and that it also cost $3700... the comfort access because i thought that was being real lazy in that i didnt have to pull my key out.. now i notice sometime when i go out and have bags in my hands or donuts and coffees in my hands i have to find my key in my pocket but if i had comfort access i wouldnt have to worry about that really.. oh well!!! also, $4200 is about $150 added to monthly payment

For me just sunroof but im not so shure because i hate the sun :) and DVD Changer
I order it with everything - comfort seats with ventilation, Adaptive Drive (i love this option), Active Steering, Air suspension on rear axel, Hi-Fi Professional Surround Audio System, soft close for the doors

If you're not used to having some of the options, then you don't miss them. In other words, you don't know what your missing. For instance, I didn't have navigation on my old X5 and didn't really care. I do have it on the new one and would not want to be without it now.

back up camera or parking sensors..

3rd row seats. I was convinced by the dealer that it was uncomfortable and not meant for real humans. However, he didn't mention that the 2nd row seats are adjustable when you get a 3rd row. There have been several times where I needed to take an extra car because we had 6 or 7 people.

I'd rather get Comfort Seats instead of Comfort Access.

I wish I got auxilary heating with the remote, I had it in my 05 X5 and loved it. Since its my wife's daily car, she doesn't agree with me. She would have added the DVD system for the kids instead of the portable Panasonic DVD we use.

rear heated seats, dvd player, ipod

DvD Sys. for the little 1's..

Hum... got them all!! LOL!