Water polo requires a pool which is an expense that doesn't make sense for non-rich schools. Volleyball doesn't have a major professional league nor one of the

Water polo requires a pool which is an expense that doesn't make sense for non-rich schools. Volleyball doesn't have a major professional league nor one of the big college sports in the USA, so its not in the interest of poor students to take part in because they probably could also be playing Basketball which has a very high profile league and is a major college sport.