I took the Bill Burke 3-day 4x4 class last year & learned a ton. One of the things I learned is just how much you can do with a stock 4x4 and not needing to use all the stuff you do have all the time. There certainly seems to be trade offs & I'm the guy that would rather have it and not need it than need it and not have it. That being said, I was VERY surprised at what my van can do just by knowing how to drive the conditions and what the limitations of my vehicle are. One of the things I loved about this class is I learned how to drive the van without using all the stuff I had available to me (basically using it as a stock 4x4) and still went everywhere he took us.