All I can comment on is the environment at Iowa. The vibe/demographic at WBB games is definitely different than MBB and football.
If there was data on the Womens vs Mens Championship games I bet you'd see that as well. If the men played Sunday afternoon and the women Monday nite, I'd bet alot of money the women would still out draw the men. Look how much people were willing to pay to go to those road Iowa games, and how long they'd wait in line to get in the arenas. Nothing remotely similar on the men's side.
As to WLZ1717's post, I predict attendance at Iowa's road games next year to be down 60% and TV numbers for the big March Madness games to be down 35% or more.