I really don't know the specifics of funding for schools, nor is it really a debate that I'm all that interested in at this point in my life. Sorry.
We really are comparing apples with oranges, because I taught in catholic schools in maryland, whereas I taught in a public school in North Carolina, which at the time spent much lower than the national average.
If you or anyone has any input as to the quality of various schools/school districts in the area, please feel free to share, as such input might be helpful in our house shopping experience.