As a CSU fan I don't exactly like the game in Denver. I do like how, if both teams are good/somewhat relevant, greater fan attendance can be accommodated. That's cool. I also think the game is more family friendly in Denver, as if it's remotely family friendly at all. As an opposing fan, attending this game in Boulder or Fort Collins would not get you treated better. I went to all but the last Showdown held in Boulder (when CSU finally won, ugh). By the last one I was tired of dealing with CU fans so I stayed home. This is not criticism of your fan base, CSU fans would be equally bad if the game were in Fort Collins. I've been to all the games in Denver since 2000. I like attending CSU games so the fact that it's in Denver makes it a little easier and more comfortable.
CSU had a 10K allotment of student tickets for this game which were sold for $25 (not free). After selling out CSU has continued to allow students to buy tickets for $25. It looks like CSU should have a solid crowd, for once.
Back to fan bases and game day experiences. I will be the first to admin that as a student I was a giant asshole to CU fans, and really, most opposing fans regardless of team. That was a mistake. I was young and stupid. I assume most on this board are beyond that phase too, if you ever were in it to begin with. Let's make sure to to our part on Saturday, share a beer with opposing fans walking past, and wish them good game.