Note to self, passing on to others: if planning college visits to Ohio, keep in mind that the Republican National Convention will be held in Cleveland, OH, July 18-21. Rooms are booked solid for those dates and for a few days before and after, including Elyria (striking distance of Oberlin) Don’t ask me how I know! 
@WorryHurry411 Most of our tours thus far have been add-ons to family vacations and that has kept the cost down. I agree with earlier posters that you can learn a lot by visiting colleges of varying types closer to home to get an idea of what appeals to your kid (urban vs. small town, size of student body, LAC vs. university, etc)
D17 and I will be taking a Midwestern road trip together and are seeing it as a fun excuse to spend time together.