I dont think that WCBB games can be played anywhere and draw great crowds. As others have said, there just isnt the general fan base of some other sports. Financially, the NCAA will continue to choose sites and participants to get crowds.
I also dont think that playing in a big arena fairly near a competing college is such a big advantage. It is not like some home arenas with students right on top of the game. I think for many, if not most players, just playing before a big crowd produces the adrenaline even if they are not rooting for you. It would be way worse to play before a sparse, uninspired crowd.