I imagine that, while SpaceX will continue to improve their cost/kg to orbit and reach a launch expense of half the current cost with re-usables pretty quickly, until someone else can compete, they could just increase their profit per launch enormously. Musk needs some serious capital for his Mars plans. I hope his global satellite internet provider concept works (I can't wait to have a option other than AT&T or Comcast) and brings in the big bucks. Then he won't need to make money on launches and can drop the launch price on launches to close to cost to help all space activities. Maybe even start selling re-usable rockets to other launch companies. Can't wait to see that day.

Long term, Musk is shooting for a ~100x reduction in launch costs to make a Mars colony feasible. Hope he makes it.