I'm doing 23 total. As of today I've done 18 and will have my 19th one tomorrow. I have 2 more next weekend and 2 more the following weekend. I am FAR FROM "burned out." I actually just came back from vacation and am pretty relaxed and ready to interview. All my interviews are in or around the city I grew up in so the stresses (financial, social, physical, etc.) associated with traveling and finding yourself in unfamiliar surroundings do not apply to me. I imagine this must be very different for people whose interviews are more geographically spread out.
The only thing I was sure about when I started the process is what city I wanted to be in. Now, as I've interviewed at a lot of places, I am starting to realize what it is that I really want in a program and this, in turn, will enable me to make a much more informed decision about my ROL.
I actually really enjoyed the whole interview process. Meeting different surgeons, some in academic setting some in community, and hearing about their careers and the differences in training their programs offer has really opened my eyes to the different types of practice settings that are out there. Hearing from the residents about the training they receive at their programs has also allowed me to see many differences between programs I was previously oblivious to.
I also enjoyed meeting all the applicants on the trail and discussing with them the different programs we have visited. It is interesting to hear what variables other people will be considering when making their ROL and sharing your own set of priorities with them. The applicants you meet on your interviews are going through the same exact process you are and they are interviewing for the same residency at the same places (my friends from school are either applying for different specialties or are interviewing at different programs than I am) so who better to discuss all your concerns with than the people who share those same exact concerns. The more interviews you go on the more of the same people you see and the more you can interact with them and discuss all these issues that are so important to us right now.
I originally scheduled 27 interviews. I recently cancelled 4 of them because I now realize what it is that I am looking for in a residency and understand that these 4 places do not offer those things. I was only able to make this decision because I interviewed at enough places to understand the differences between programs and to figure out what I want.
I would recommend doing as many interviews as you can. I don't think you will ever again get such an opportunity to learn so much about the different types of surgical training that is available to you. Just my $.02