You’re conflating two different issues (I think):
1) declining attendance
2) good looking attendance
Outside of the 26K+ crowds, the dome doesn’t really look good in terms of being “full.” And Syracuse has consistently gotten bumps in attendance via big games against the Dukes, GTs and Novas of the world because they can hold those fans, even if the experience for those in nose bleeds is, at best, pedestrian. Personally, I would love a KFC yum! center type court, I think it would be a much more enjoyable experience for the fans and the players (and recruits). Let’s say 17k is the base number for the foreseeable future, like bees said, that’s 6th in the country and fills up 90% of the stadiums in the country on average. That’s a workable number of total seats and desirable for nearly all programs and gives fans a way better experience.