I passed on a few things actually, I didnt get the HK sound either, but I am puting the saved $$ into a Phatbox that works with the BMW stereo & some other system sound goodies. I do love Xenons though. IMO The absolute 1st recommendation is the Premium Package, the moonroof is very quiet and smooth, I did splurge for the heated seats though.
This is why I think its nice to "order" a car, we all would prioritize differently. I am not certain if Xenons are retrofitable ? Hmm. I am in the process of getting Bilstein PSS9's, just for a very minor drop. It all add up to so much freakin' money, we car fans are crazy !!! [80?]