Earlier quoted context omitted.
I expect they would still blow a lot on R&D. However, rocket fuel for a small craft is not that expencive so it's really a question of how much inspection / repare the vehicle needs. A light craft could reinter the atmosphere with minimal heating, and you can build reasonably efficent but vary simple rocket engines so there is plenty of room to simplyfy matence. So, in theory we chould build a fairly cheap and reusab…
>>could NASA build such a ship? IMO, that's really just a question of would congress fund such a ship? Sigh. To repeat a trivial point for the third time... You have the opinion that NASA after 1970 could do any large project and push costs down by a factor of ten. If a serious argument could be made, then one of the NASA fan boys would have posted it...
So if there was some need for thousands of people to be sent into space per year then NASA could design and operate a fairly low cost per launch system. However, once they started operating highly capable but delicate system added to the fact there was little value in sending more than a token number of people into space in a given year then costs are going to spiral out of control even if the desgin was reasonable.
PS: I have even heard the argument that NASA benefited from the amount of spectacle involved in the shuttle program. If they had built something that looked and operated like a 747 nobody would have cared but build something that takes thousands of controlled explosions and then sit’s on a huge ball of fire into space and wow you must be doing something important.