We have a 2010 Honda Accord with very little mileage. After we bought our Motorhome, we thought about getting a towable vehicle but just couldn't justify the expense. We decided to purchase what I would call an upper end tow dolly with surge brakes and lights. It meets and exceeds the required laws here in Florida and I plan to tow it to wherever we travel. In OP's case, if my vehicle allowed 4 down towing, I would have purchased the equipment to tow our vehicle 4 down because:
1. Additional area needed to stow the dolly either here at home or at campsites and physically roll it to the stowed location.
2. More time consuming to connect.
3. Having to have an additional tire for a dolly spare and stow it.
4. I am getting too old to crawl under the car to insert or remove the tilt pin.