Ditto to whoever said that the season gets better everytime.
I can honestly say that had I been a contestant on the AR, I'd probably be more terrible, more conniving, and harder to deal with than Colin. That's the way the game is played, and you'll stop at nothing to be the first one to that finish line.
Putting the million bucks aside though, I think the most important thing about the race is how relationships are tested. It's hit or miss most of the time, but any relationship that comes out stronger in the end is what matters.
That being said, I'm glad that Colin and Christie are engaged.