Booban, I know of no one that generally posts in the space subject area here on space.com that is generally not a very sensible poster. The non sensible ones are all over on the more political posts on such areas as free space!
Mattblack, Halman, you, myself, and just about everybody else here are the best this site has to offer (and yes, that includes some that also post on free space such as docm. occasionally even I am masochistic enough to post there).
While the profit motive is not by any means the only one for the space program, I do agree with you that it has not always been as directly pushed as it should be. No problem there.
But remember there are two different types of profits that we are talking about here. I would call them direct and indirect profits.
Indirect profits have been the most important for the space program up till now. They are profits that occur when the very advanced technologies of just getting into space with either human beings or robotics generate research that eventually results in products that give us more and more advanced products that in themselves make tremendous profits! If you were to look at the miniaturization that has taken place in such important areas as electronics, communications, optics, computers, and such in the last 40 years or so, you will find out that the greatest driver of progress and eventually products in those areas has been the space programs of not only the US, but of the rest of the world also.
And the amount of pure profits that have been so generated by those products have been far more than 10 times as much as has been spent on all the space programs of the world put together. After all, without such advanced technologies, we would not now be communicating with each other at all!!
Then there is the direct profit area. So far the only major area of that type of profit from the space programs of the world have been related to satellite profits. But those profits alone would have easily paid for ALL the space programs of the Earth, whether manned or not! Think about it for even just a moment, and you would see just what I mean.
Cell phones would not even exist without very advanced communications satellites. And GPS is now even used by large farms to monitor just how well they are even plowing their fields, to say nothing of just what to plant and where to plant it!
Now, what is needed is a similar type of direct profits for placing human beings into space.
Well, at this particular time the only one that seems capable of generating such profits would be the space tourism industry. And that IS going to happen also. It will start with Burt Rutan, Scaled Composites, and Virgin Galactic.
They already have enough people signed up (at I think some $20,000 each for a down payment, on a total cost of some $200,000 per each sub-orbital flight), to pay for enough flights for years to come after they actually start their sub-orbital flights. I certainly would expect that they are going to be making direct profits with these flights!
I fully believe that next step to be hypersonic (especially as the Air Force is pursuing this area with their own with far greater than NASA's funding) very high speed travel for both business people (to whom time IS money) ,and also high speed material travel around the Earth. Such travel, will make no one place on the Earth anymore than some two hours away from any other place! To say nothing of actually still going into sub-orbital flight while getting there!
Eventually, we will see such direct profit tourism flight even to LEO, but I think that will have to come at the same time with such as Robert Bigelow's inflatable space habitats, as you are going to need some kind of reasonable destination besides the then aging ISS to get relatively wealthy people to want to even risk going into space.
In fact, I personally think that such "Space Hotels" are going to have to offer some kind of reasonable accommodations for such relatively wealthy people, at least in the beginning. This would mean probably hotels in LEO that are spun to generate different levels of artificial gravity (such as the moon's at 0.16 g, and Mars at 0.38 g), as there are still plenty of people (even some astronauts) that get space sick at first in absolutely weightlessness!
But, it WILL happen, and it WILL generate profits, and the costs will continuously come down so that more and more people will be eventually vacationing in space itself!
Eventually, on to the moon, and beyond!
So I would not worry about space becoming profitable at all, after all, many people thought that Thomas Jefferson was crazy for purchasing so much useless land with the Louisiana Purchase, and they then thought the same about the purchase of Alaska also! Who is it that is laughing now?
It IS going to take some time (and in the meantime NASA can go ahead and take humanity even further out), but it will happen. Eventually, (especially with such transportation systems as space elevators) the industry of space itself will dwarf the value of all such industry that has ever been available on this planet itself!
In fact, at some point in the future, I might even expect the planet Earth itself to become the biggest tourist trap in the solar system! Although, we might have to keep the "tourists" from trampling the grass!! :lol: :lol: