There are many ways to frame the Obama decision to end the Bush "Vision for Space Exploration", but the decision is much more profound than "we're not going to the Moon". The media will focus on the ending of the lunar project, but the most significant aspect of the decision is that Obama will promote serious commercial development of space by giving the private sector the keys to Low Earth Orbit - for the first time, the government will buy human space transportation from private companies, instead of creating the transportation itself.
This is a fairly radical approach to supporting free enterprise - and it puts right wing critics of Obama's decision in the position of supporting socialism, since the BushBots seem to want the government to be in charge of designing transportation systems. This, therefore, is a major opportunity to show the BushBots that they are not real conservatives, they are simply hacks.
More below
Since the dawn of the Space Age, NASA has been in charge of development of space transportation systems for humans to access space, including the Apollo Saturn rockets, and the Space Shuttle. Although the success rate for these systems is not that terrible, the costs involved are. On the other hand, the Launch Services Purchase Act of 1990 removed NASA from the loop in flying unmanned rockets, with the immediate result that prices fell by almost a half. The LSPA mandated that NASA be forced out of developing new rockets for humans, as well.
In 2004, Bush proposed a plan to go to the Moon, and as part of that plan, NASA would develop the rockets to carry people to the Moon. This violation of the Launch Services Purchase Act was basically ignored by the media at the time, but was a major step backwards in Conservative policy - it gave the government a job that the private sector had long ago demonstrated it could do. The result was billions of dollars wasted as NASA tried to relearn the skills necessary to design a rocket. By 2009, it was obvious that, despite the apparently successful launch of Ares 1-X, NASA's designs were terribly ineffective, and were due for perhaps a decade of costly revisions.
Obama wisely killed off this Bush mistake, but more importantly, returned to the Launch Services Purchase Act mandate and will now BUY launch services from private companies, even for any future lunar missions. This gives the private sector a market for its launch services. At this moment, a private company - SpaceX - has a new rocket at the Cape, ready to carry up to 10 tons into orbit at a fraction of the cost of the Space Shuttle.
The BushBots will complain about the loss of the lunar mission, but in effect, they will be advocating a return to Socialism, where the government is in charge of such projects, and the private sector simply builds what the government mandates. This old model did not work in Soviet Union, and it doesn't work in space.
It is critical to remind the BushBots that their idol George W. Bush proposed and maintained a giant Socialist lunar program that Obama killed today, in favor of commercial space launch. This opens the door to, one day Real Soon Now, YOU will be able to buy a ticket to fly, not just for a suborbital space ride, but into orbit. No thanks to George W. Bush.