Originally Posted by
No.3
Oldmate with the rooftop offering on the trailer kind of comes to the same point - he has the tent set up on a small box with locking compartments, all of his camping cooking and travel crap goes in the trailer under the tent. Gets to where he's going and it's about 5 mins to set up and 5 mins to pack away - modern form of the pop top tent caravan thingy.
Lower down means no stability issues, minimal wind problems, two steps down to get out (he has a fold up alloy ladder step thing that goes in the trailer) and if he needs to go anywhere he can disconnect and immobilise the trailer by locking it to something so at worst an opportunistic crim can only damage the tent. They would have to cut into the trailer box doors to get in or cut bolts to get the tent off - so no real advantage. Same risk of damage as having the tent on your vehicle at a road end with busting a window etc etc.
Having it on the trailer suits him better than mounting it on the vehicle, less fuel burn towing and at home it's easy enough to slip the box off the trailer with the tent attached and it takes up less room than anything else.
Plus being on a decent trailer means it's less likely to get damaged at road ends etc.