Last UConn sellout vs. CCSU was Dec. 22, 2004 - #11 UConn 87, CCSU 59 at Hartford (16,294)
As recently as Dec. 28, 2014 - UConn 81, CCSU 48 at Hartford (13,315) was a near sell-out.
The only stinker (attendance wise) in the series was Dec. 23, 2015 at Hartford (7,123)
From 1991-2014, the 7 games between the teams drew 13k+ each time around and 5 of the games were days before/after Christmas. I get we are all coming back from COVID, but this matchup should always be played in Hartford. Makes a lot more sense to put the game between two Connecticut public universities in Downtown Hartford so it can draw as many as possible form both sides and from the four corners of the state.