The difference between Tier 3 and Tier 4 may not matter, but the geographic difference matters a great deal. Unless you truly don't care where in the United States you are going to spend your professional life, I think it's absolutely crazy to pick a school that is 1,000 miles away just because they offered you a (not-even-full) scholarship.
Just my two cents. Personally, I think geography trumps almost everything anyway. Unless you're talking about T14, I think it's stupid to go to (for instance) #22 Emory just because it's the best school you got into if you know that you ultimately want to practice in San Francisco. For the OP, who says he wouldn't mind New England but doesn't want to work in Minnesota, I wouldn't go to St. Thomas even if they offered a full scholarship. For that matter, I wouldn't go to Emory. The final value of your law degree is its ability to get you jobs, and the marginal value of a #22-ranked school does not trump spending your three years working and making connections at a school based in the locale where you want to practice.