We have a 4WD (what Aussies call SUVs) with a roof rack, and have never taken it off road. We use it for skis, surfboards, extra luggage (family of 4). Roof racks are an extremely useful addition to a car, for a family.
But going off road is not even what we're talking about. We're talking about putting a lot more stuff in or on top of the vehicle. More than you would with a sedan. I have no problems with people who buy a Sport Utility Vehicle and never go off road. Having the Falcon Wings reduce the options for a roof rack is a valid concern that has nothing to do with going off road.
In the states, especially in places that aren't Colorado or Washington, I didn't often see SUVs with racks on the top. Maybe it's just a northern thing...
