On our retirement trip we elected not to tow to keep things as simple as possible. Plus, neither of our cars at the time were towable 4 down. We spent $3000 in rental cars over 6 months and discovered;
1. We missed a lot of local attractions along the way
2. We were picking campgrounds that were within Enterprise's "We'll Pick You Up" radius. Not the best criteria.
I bought a used Equinox and had it set up for towing. Found a used Blue Ox towbar and RVi Brake on Craigs List. The enter tow setup was half the cost of rental cars on the trip. I'll never go back to renting.
Jerry & Jeanne
1996 Safari Sahara 3530 - 'White Tiger'
CAT 3126/Allison 6 speed/Magnum Chassis
2014 Equinox AWD / Blue Ox