While it might just be you being your usual unreasonably grumpy self, I actually agree with you.
The space shuttles originally were supposed to be launched into space via the aid of a jumbo jet flying high into the stratosphere (or course rockets would also be involved, but not the gigantic hydrogen rocket you see strapped to the back now). That didn't work out, but they had invested so much money in the program that they decided to jimmy-rigg it with a big old rocket strapped to the back of the shuttle.
When the shuttle was going to have to fly for a bit, the airplane-like design made sense. When they changed it to essentially launch like a rocket, it made absolutely no sense.
The ONLY benefit of the shuttle's design was the ability to launch large cargo, and for those missions it was essential. Hell, the thing got the hubble in orbit and esentially built the international space station and for that it was worth it. But for 90% of your space missions it was a waste of fuel and resources to use such a large ship to send a few people into orbit. An apollo style rocket would be much better for such a mission.
And of course it's been proven time and time again that the tile system on the ship is flawed, essentially causing two explosions. The tile system, which wouldn't be necessary if it were a traditional rocket and and less surface area to burn up.
I hope it isn't the end of America's space program though. Even if you aren't a fan of exploration for exploration's sake, a butt-load of technology came out of the original space race and the shuttle missions. We are using one right now.
