Mark,
I started going off road in 1994, purchased my first 4WD (Nissan patrol GQ LWB diesel, what a car!) in 1995 and never looked back. By now there are only few major destinations that I haven't done, the most notable being the mighty Canning. I always looked at towing as a limitation of my ability to get anywhere I wanted. I believe this still applies. There are some tracks out there that are simply not for trailers (Vic High Country comes to mind
). IMHO the promo from Ultimate Campers claiming that the only limit that can be applied to their campers is that of the driver's and towing vehicle's ability is just nonsense. But today I no longer go extreme and I can safely say that the only limitation for me to get anywhere with the trailer is my lack of experience with towing. I am happy to trade "extreme" for comfort, that's what happens on the other side of 55...
And let's face it, Simpson or CSR are extreme enough for most of us and you _CAN_ do them with a trailer.
I know I need to practise a lot - reversing down from failed attempt at the sand dune without jack knifing, thinking ahead about being able to turn around if I need to, reverse parking etc etc. Scary stuff, but I am keen and looking forward to it. I am giving myself 6 months to train and then will be looking for some victims to go and do the Canning with us. FINALLY!!
Here is our crossing of Jardine in 1995 - pic taken my my mate who was already on the other side.
Cheers
Peter