I'm lazy and the complication and cost of setting up for towing and having something in back to deal with, un-hitching and hitching seems like overkill compared to planning ahead or occasionally having to disconnect the RV and drive the rig to the store or restaurant, etc. Occasional renting a car to tour NY city, Boston, etc. seems more cost/effort-effective for our RV'ing style. Some people are more tourists than campers or are involved in social camping activities, sharing rides to restaurants, etc. where towing is considered necessary.