First we were Twinkies and now we're cupcakes? What's with CU and calling opponents snack cakes? I hope you're not saying that we are an easy team on your schedule, especially after last year's game (which I wasn't going to bring up until I saw this post).
As far as pre-game goes, I'll bet there is as much of it going on in Berkeley as in Waco, but it is probably more spread out because there is no one main parking/gathering area. Some of it doesn't involve bottles, cans, kegs or cups either, as I suspect is also true in Boulder.
On top of that, many Baptists think drinking is evil and tend to really cut loose and be more demonstrative when doing something "wicked". You're on your own as far as conducting your personal balls comparison, tho'. San Francisco is 12 miles west -- you might have more luck over there with that survey. Let's just say that many of us Bears are comfortable driving Priuses and other small low-power cars.
This sounds like it's gonna be a pretty decent rivalry between our two schools. Bring it on.