We are looking for advice on an RV for a cross country trip for two. We have looked at Class A, C and B and are concerned about towing a car, the towing length for roads in Yellowstone, Grand Teton, Grand Canyon etc. . After that trip we would be going to the northeast, then traveling to see family and friends upon occasion. The thought of having to "make" the bed every night doesn't appeal to us at all. Is it better to rent or buy? Do you need to tow a car? Any advice from the experienced will be welcomed and appreciated. We have never had an RV but love to travel!