Being outside US, my opinion or view dont count for them since i dont pay taxe in US or just a few by the tiny help my country is doing in space exploration. Anyway.
For the moon:
Radio control robot sent on the moon and control from earth would be an increase acceleration for the development of moon bases and citys and the space building company. All material are already there to be use. Radio control machines and/or robots can be driven from earth and there wont be any need for oxygen or heat or radiation shelter or food or water or spaceship cargo to deliver all those goods for the humans need.
Those machine will collect material from the moon and use the sun energy to melt it and separate it to make the building block for bases or citys. The high cost will be to send the machine there at fisrt. Then since it will be control from earth, it will be a matter of time before we will be able to built copy of those machines and robots on the moon without having to send anything more from earth. So with time, bases and citys will be build and the cost will not increase much. Then human can go there and inahbit the moon. Of course building a spaceport and space factory will be as easy (
) if i can say easy. From there, all the solar system should be ready to be colonise too. I mean with new nuclear space engine. (Nuclear solid core or liquid core or ionic one or pluse detonation engine. You name it...
Again, sending machine there first and start digging and building from here is a relative big start investment but no more money to add after that. So people will stay on earth and they will have a normal salary to drive a buldozer on the moon. Wich cost way less then sending human overthere to drive that buildozer. Technology is ready for that. Lets do it that way.