In the perfect world, where there are infinite resources and an even MORE infinite amount of money, I just wouldn't use the Space Shuttle. It's sort of like recycling... If we didn't need to conserve our resources than we WOULDN'T CONSERVE OUR RESOURCES. Why reuse everything when you can just manufacture a completely NEW rocket? The whole point of the Space Shuttle was to have a reusable launch vehicle, and they did manage to reuse ALMOST everything during the Space Shuttle days, reusing 2/3 of the Launch Vehicle. Wikipedia states: "Each Space Shuttle is a reusable launch system that is composed of three main assemblies: the reusable Orbiter Vehicle (OV), the expendable external tank (ET), and the two reusable solid rocket boosters (SRBs)" That kind of reusability, wasting only 2/3 of the Launch Vehicle is what kept NASA launching the Space Shuttle on 135 missions. And with a 98.5% success rate, the Space Shuttle not only showed its reusability, but also its reliability. But this isn't a perfect world. This is a world where we have to reuse as much as we can to conserve resources and the bills in the bank. Sadly, the Space Shuttle Program had to come to an end at some point with all the jerks in DC arguing over the budget. Luckily, it opened up the door for Orion, and Dragon. Now, my hope lies with SpaceX's Dragon to become the next vehicle to carry American Astronauts to the Space Station, instead of hitching a ride with the Russians. Private firms such as SpaceX, Orbital Sciences and Boeing are building the future of spacecraft. These new commercial firms are creating new jobs at home and keeping the U.S as the world leader in space. With SpaceX (hopefully) handling transport to LEO and to the ISS in the near future, NASA can take care of Orion, and get us back to the Moon and beyond.