The sign of a good fanbase is when your fans reach the upper deck (300 level) of our away section.
Only two Big East teams ever did. West Virginia (occasionally) and Virginia Tech (often).
Others who have overflowed up there since the 90s include (in no particular order): Tennessee, ND, Michigan, Florida, Florida State, Texas, Ohio State, Auburn, Penn State. Maybe Oklahoma too, but I recall thataway section not being as full as I expected. Played them in that mediocre period between Switzer and Stoops.
Good company to be in.