Why didn't they continue this show?

This show, as you can see on the main page, only had one season. I normally hate reality shows, but I really loved this one, and then they go and only make one season of it! I was so mad, how could they do this to such a cool show? And now you can't even watch the one season online. When it came on TV, they showed the episodes over and over, but when it ended, it was like wiped off the face of the Earth!