As I said earlier , there is no question that our dog travels in the cab because that is what we and he likes to do.
Some of my hunting buddies spent enough on their comfortable truck bed dog kennels that you would think it came with a dog Masseuse for a rub down after a hard day in the field. It is their dog's sanctuary.
I think it is important that people understand what is involved in pet travel so they can decide what is best. I am sure our old barn cat would have no problems bouncing down the road in our TT but he stays at home to catch mice and pester the neighbors at feeding time.
Our dog is totally different, he wants to be with people and considers the back seat of the cab his domain. Every animal is different that is for sure.