If all we had done was tour & info sessions, my kids might have also thought all colleges were the same. My kids usually sat in on a class, we ate in the cafeteria, and we had our own items of interest we visited on campus outside the tour – art classroom building for D2, study abroad office for D1. It does pretty much limit you to one campus per day, so we did our homework ahead of time to try to visit campuses that seemed like a good fit to start with.