> Well, it's not about my opinion. It is. You're making statement about the future - what SpaceX will achieve or demonstrate - as if it's a fact. There are ple

> Well, it's not about my opinion. It is. You're making statement about the future - what SpaceX will achieve or demonstrate - as if it's a fact. There are plenty of people who disagree with this statement, who have another opinion about the future and who will point out that SpaceX did several times something what was considered at least unlikely. > Please note that $2700/kg is still great When Proton launcher debuted on world market in 1990-s, the price (not cost) for a launch was about 30 millions, which, given payload about 20 tons to LEO, gives price per kg of about 1500 dollars. $2700/kg isn't bad, but isn't record-shattering either. As for costs - as opposed to price - of Falcon-9, we may have only estimation. Two orders of magnitude difference won't likely be achieved immediately, but the potential is here. See the evolution of airlines.