I am in a different discipline, but I think I can add my 2-cent. The main topic seems to be 'fit'. If you were an undergrad applying to Ivies, the fit question should concern you more. This was a huge deal for me, because I was in between going to small liberal arts college where 50% of its student population came from New England and a big public university where I might feel lost and confused for the first year and half. I think this fit question is seen in a different angle when you apply to doctoral programs. It isn't so much whether you can go to frat parties or get to mingle with your dorm friends. After all, doctoral programs are designed to promote a small-group intellectual production under your adviser's apprenticeship. So the relevant 'fit' question, to me at least, is whether the professors in the department and people in the program are productive, not completely insane, and truly care about academic collaboration and beyond-the-program placements. If it is the case that your general fit to the student body and school is a more discernible issue to you, then it maybe better for you to talk to the admissions office, probably the undergrad one, to get a sense of what a typical day is like on campus. I am less empathetic to your concerns about the prestigious schools pursuing fame and fortune and virtually care nothing. I think a more relevant issue should be whether the professors in your accepted program care about his or her students. Hope my 2-cent helps.