Apollo was not about the Moon, not about exploring the universe, and not about boldly going where no man had gone before. Apollo was about, purely and simply, beating the Soviets to the Moon!. Once that goal was reached, we stopped going there. Put another way, what happens when you win a battle? You stop fighting it.
Space enthusiasts (and I'm one of them) cannot seem to comprehend this simple fact of life. We are doing nothing of any significance in space because there is no national imperative to do so. Thus, 30 years of stop-gap programs, the entitlement Shuttle, and make-work ISS.
Want to conquer the Solar System? Find something out there that'll make millions for somebody. Then, get financing and go do it. Quit thinking of Apollo as a template for the future -- it wasn't a plan to explore space; it was a battle in the Cold War (and one that we won, thank God!).
And stop moaning about our "lousy space future." The only ones responsible for that are ourselves.