There were two venues completely sold out. Hockey and Curling. When you first watch it... boring as heck.
But when you start to understand it, it becomes really intriguing. It is a sort of "geek" sport because of the physics and geometry involved. As for physical fitness... not much but try to get in that position. quite difficult. There is a lot of terms used that are hard to follow. Sometimes we are watching it and my wife would look at it and ask, "What did he just say?"
As for "not getting worked up". Pulling the national pride card here. You should always pull for the US to win in any event. In Torino, the US men pulled off the unthinkable and came in third. Not unreasonable to think they could have done it again.
A little online game for the curling enthusiast. http://www.playcurling.com/