This is a question that is high on my list as well. Right now, I only have 1 kid, so taking a family trip will be no problem, but I don't know what the future holds for my family, so the option to seat extra people would be handy. The real question is, I have $1,500 for options set aside in the budget, do I get the air suspension of the jump seats. There is a good chance that I will never need the seats, and if I know I can add them in latter, I am sure I will be able to find the funds (cheaper than trading in for a model X at least). If I know I will be unable to add them at a latter date, I will probably need to pass on the air suspension to get the jump seats just to make sure I never have to give up my dream car for family needs.