Of course as a K-State fan I'm over here on the board checking out the KSU/ISU talk, but saw this thread and thought i'd give my $.02.
I'm heading to the K-State/CU game in November and have seen CHEAP tickets already out there for the game. Like someone said before, as the game (KSU vs CU and ISU vs CU) gets closer the price of tickets will get lower and lower.
Went out to Boulder in 1998 to see the Cats play. It WAS my worst fan experience as far as an away fan in an opposing team's stadium, until a string of bad MU games in Columbia. I'd say now it's a tie.
If you are going to the New Belgium Brewing Company, here's a useful hint. GET THERE EARLY! I tried to go there last year around 2pm and all the tours were full for the rest of the day AND the place was packed (I believe it was on a Friday). If you don't get in there, there is a Budweiser plant about a mile away north (or go there too). FREE beer after the tour.