I didn't read all of the posts but I see there are a lot of different opinions.
We rented RV's for the first three years to see if we wanted to buy and RV. As you can see, the answer was YES, we love RVing! The first rental was a class C so we were able to break camp and drive around touring.
The second and third rentals were class A's so we rented cars because our personal cars were not set-up to tow and were too heavy. Getting a rental was difficult and non existent in some places. It was expensive. I see some people have gotten cheap rentals but we didn't have that experience.
We could not get a rental in Sedona, AZ. (in 2005) at a normal rental company (closed on the weekends). The only thing open was a used car rental store which came to pick us up. Worked out nicely but I just couldn't understand the no rental on weekend from the major companies. You could only get a rental from them if you flew in the airport.
So, when we purchased our RV, we knew we had to get a tow vehicle and wouldn't have it any other way. The convenience alone is worth every penny spent setting it up for towing.
Safe travels,
MM.