you basically covered all the drawbacks of all the options you are considering. at the end you need to decide now much the toys are worth based on the cost. my opinion
LED-i had LED on my f10 and xenon on my f15. the led looks cool but i am not sure it actually has more light than xenon. and all the cool features are disabled in the usa anyways. so think of it as 1900$ bling.
park assist-don't need if you live in rural.
leather dash--i wouldn't get it unless i was getting napa seating. i need the leathers to match.
if you frequently go over potholes, speed bumps the air suspension is nice for rear passengers. again a luxury. DHP basically gives u bmw car like handling on an SUV. its good but pricey tech. if u are highway cruising probably not worth it. if you like to smash the throttle on turns or exits and look for the tail to slide out then you want it
