To show how much more expensive Catholic Universities are I offer the following:
My oldest daughter was first in her high school class.  She spent two years in a Catholic University.  After applying all the "scholarships" and grants our bill came to $4000/semester.
My twin daughters finished first and second in their high school class.  They both attended a State University for four years.   The bill  was the cost of their books each semester.  
Since my income during that time never exceeded $60,000,  a Catholic University was out of the question.