Not too many bad seats. Avoid student section (south endzone, lower bowl). Visitor section is NW side (top of the left side of the U/horseshoe shape). I’ve sat there twice, once in the old north end zone (has been redone) when Reggie Dunn had a kickoff return for TD. 2 years ago, right behind visitor bench. 4 years ago, SE high side and could move down (snow and cold 1st half weeded out a lot of people)
I’ll wait probably until a week before. Might depend if CU has lost enough times that CU fans bail (last year tickets were sky high for first several games then started falling off a cliff). If they are playing for a 6th win, could keep prices higher.