I'm pretty sure somewhere on the SpaceX web site they say that the fuel cost is actually a small fraction of the total cost. That's why reusable vehicles (which

I'm pretty sure somewhere on the SpaceX web site they say that the fuel cost is actually a small fraction of the total cost. That's why reusable vehicles (which they want to do) even make sense. It would be more informative to say the real price is mass, since it's the fact that you have to accelerate the mass of fuel you will use at time t up to that point that gives rise to the tragically inefficient log term in the rocket equation.