First I agree with Bull Rider "It's your choice and your family" and I would like to add its your trip ruined and you and your family back home late to jobs, school and other obligations. I have a slight issue with the "Do you pack your tow vehicle bearings that often"? thought. I drive my TV often and feel/hear the vibration, pulling and smell the brakes/grease in the TV bearings. because I'm in it and feel it and how it acts all year long.
We burned up the inner bearing, seal and both shoes in 40 miles after adding grease in the E-Z lube axels because the hub felt slightly warmer (but could still keep our hand on it) to the touch than the other 3 in the first 50 miles of the trip. We never smelled the brakes, felt the bearing or saw smoke until we stopped for fuel.