So it seems the going price (Amazon sellers at least) is $739 for the G1X. Meanwhile, as much as I absolutely love the S100 it finally slipped out of my hand and cracked the LCD. It still works, and I have some tape on the glass to keep it together, but I've had too many near misses with that camera. I love the size and that I can clip it on my belt, however I find it too easy to drop obviously.
So with the first price drop on the G1X I ordered one. I'm traveling next week and can't take anything bigger.