Kentucky, Kansas, and Duke (in that order) seem to be the only ones who can consistently fill their buildings.
There are exceptions, but declining attendance is a collegiate problem. Beginning to affect football now (4 or 5 years in a row of declining attendance) and I'm not sure what the answer is or even if there is an answer. The youth today don't have the passion or strong interest for collegiate athletics so this decline may continue for a long time. Will be interesting to watch the next 5 to 10 years.