I've come to Princeton most years since I was a first-year graduate student at Pepperdine. In November of 1997 I went to Boston for the Society of Biblical Literature Conference. Toward the end of the conference, I hopped in the car and drove to see some of America's most famous colleges. I was taken immediately with Princeton University and the little town that holds it. I began taking a spiritual/study break there the next year–and have done so most years since.
Princeton Seminary (adjacent to the university) is also one of the finest seminaries in the world. It's library is second to none in the Western Hemisphere. Back then you could stay for 15$ per night in the Seminary dorms–including daily linen changing, continental breakfast, and use of the libraries. It's gone up a bit since then, but I keep coming back.