Being a pro space exploration person, its hard for me to say this. But Bush's "vision thing" about missions to the Moon and Mars smacks more of new entitlements to the defense/space industry (based mainly in Texas and the South) than they do of a true commitment to exploring the cosmos.
Shorter version - the title of the program should be the "Screw Welfare Mothers Lets Give Our Money To Rich Texans" program. He's just sucking up to his base, the is no "vision" here.