A quote from an article on the Verge says "Musk declined to comment on the exact cost of the trip, but said it was “comparable” or a little more than the cost of a crewed mission to the International Space Station." Does anyone have a rough estimate how much a manned mission to the ISS currently costs?
Russia currently charges $58 million per seat to the ISS, with the price expected to increase to $80ish million by 2018.