Camping's utterly brilliant!!.....
I just love to sit and watch campers freezing there bottoms off on a cold damp evening, from the warmth of my fully centrally heated caravan, with flat screen TV, running water and fully sprung king sized bed
Ah yes - but when all our campingg ear is tucked away in the Clubman Estate and we are on the road nobody calls us a mobile road block LOL
Ah yes, but then you don't get all the satisfaction of causing a mobile road block and being a complete and utter nuisance to other road users either!! 
Seriously though, aside from the slightly lower speed limits that you're supposed to adhere to, towing a caravan really shouldn't hold anyone up significantly. The problem is the type of dull, over cautious middle aged/ elderly people that tend to be associated with caravaning and the fact that they insist on dragging their sheds around behind them everywhere overly slowly. Nothing gives me greater satisfaction than overtaking these types towing their caravans, whilst actually towing a caravan myself, and watching the looks of utter disgust and disapproval on their faces as I sail past!! 