There is not enough data yet on 2015 repair costs for the rates to change, but you can damn sure plan on it in the future. The repairs costs for the all aluminum vehicles have been and will continue to be considerably higher. There are also very few places that actually have the capability of performing the repair too. You can't just take it to any body shop (if you want it done correctly). We just did our first bedside on a 2015 F150 recently. What would have been maybe $1500 on a steel body was over $4k on the aluminum body. Working in the insurance industry, no way would I buy aluminum truck.