I'm originally from Boulder, just down the road. It is really a wonderful event. Just a word of caution: Yes it is the first weekend after Labor Day, still summer right? Not necessarily in Estes Park. I've been at these games where it has rained, sleeted, been windy, cold, hot, and snowed, all on the same day! So take clothing along just in case. You've been warned, now do what you want.