I understand that, at present, the useful load of a 2006 is 790lbs, with no fuel.
There may well be an increase in MAUW in the pipeline, which would make this a good deal more interesting, but at the moment 700nm+4 adults+luggage+fuel will not fit into a 2006.
True, but neither will they in a 182. In fact, almost no 4-place aircraft can fit 4 people and any fuel, that's why a 6-place makes more sense if you regularly have to fly 4 people. If it's just once in a blue moon, then I don't think it's worth it.
What's great about the 2006T is that it runs on Rotax and Mogas. I know there's still a lot of resistence towards Rotax, but hey, it's happy on ethanol-filled Mogas, has a 2000hr TBO, cost half the price to overhaul and is crazy frugal on fuel - that's good enough for me. Stick one of these in the back of your car and fill up at the gas station:
Fuel Transfer Tanks & Aluminum Steel Combo Tanks, Diesel Fuel Tank | 4Truck-Accessories
Who wants to be loved by an oil company? S**ew them.