Well JW got me to the next thing I needed to do which was debrief the trip. I'll add that soon, but to address your point, we rented a car when we needed it instead of towing a car. Neither of our cars could be towed 4 down, so we would have needed to buy something before leaving on the trip. We stayed longer when we had a car, although we did try to stretch a no-rental stop to 2 weeks. We also found that we were picking places to stay based on their proximity to an Enterprise location, which is a poor criteria. It did work out for the most part, but at least I'm convinced that towing is the way to go. Now I just have to convince the DW.