I am looking forward to the aluminum Raptor. 500 pounds lighter is a big deal. Imagine removing all 4 drive wheels and the spare on our current Raptor ... this equate to a 500 pound weight reduction. The new Raptor will be so much more responsive, agile and quicker when compared to the current Raptor. And don't forget the 2017 Raptor will have more HP and Torque and propelling less mass.
And I don't really care about the additional repair cost. I do not say to myself, "hey what happens when I wreck my truck and how much will it cost to repair?" As I don't plan to wreck any car I own, it's not a concern. And if I wreck my car, then I will use my insurance. And that's why I have insurance.
And if the new aluminum body is more prone after an accident to be declared a total lost? Who cares, if I damaged my truck in any way and even if after it is fixed, the damage/repair is always in the back of my mind so YEAH total it and give me a new truck.