There is room to reduce cost much further. Discarding the second stage is a large cost. The propellants used by F9 cost $200K/launch, according to Musk. With full reusability costs should fall at least another order of magnitude.
Or they can't, because there are physical limits to the chemical rocket technology.
>There is room to reduce cost much further. Discarding the second stage is a large cost ... with full reusability costs should fall at least another order of magnitude.
Reusability is not a panacea. Falcon 9 is partially reusable and it is not significantly (if at all) cheaper than the competition. There is no evidence that full reusability will provide an order of magnitude cost decrease in prices. Fully reusable rockets imply that you're cutting into your cargo space (because you have to ship extra fuel for the decent), and maintenance is expensive and time-consuming. Don't get me wrong, there may be costs savings there, but not 10x, more like 10%.
Awfully coincidental it happens to cost just slightly less than than the competitors.
No, that's just you stupidly confusing price and cost.