Having been to Duke, UNC, Wake Forest and NC State games - only NC State sells their stadium without ND on the schedule. Every other team has $100-$200 season tickets that only sell out if ND is coming to town. Their football atmosphere is terrible. Coaches may not like a reminder of how bush league they are but ADs like the $$ not just of the contract but the cheeks in seats and ability to bundle shitty tickets with ND to pretend they sold something that year. Look at the empty ACC CCG stadium in Charlotte with Duke and UVA - basketball schools first.
Because I'm bored, I did the attendance research for the ACC for the last 5 years for teams we played on the road:
2021
FSU: 57,073 avg; ND game 68,316... vs Miami was 71,917
VT: 57,579 avg: ND game 65,632... UNC was also a sell out
Vir: 41,415 avg: ND game 48,584
2022
UNC: 47,420 avg; ND game 50,500... Pitt & NC ST also sell outs
Syr: 39,998 avg; ND game 49,861
2023
NCST: sells out all their games
Duke: 22,502 avg; ND game 40,768
Lou: 49,947 avg; ND game 59,081... Kentucky was 59,225
Clemson: sells out all their games
2024
Ironically no ACC away games for ND