I like watching man vs. wild for the sake of entertainment. Lets face it, the majority of people are no in good enough physical shape to do half the shit he does. How many people can even do 10 pull-ups...let alone climb out of a cave using tree roots as ropes? If I had to guess, I would say very few.
I still think its a good show though...he does some pretty crazy shit. He is an ex SF though so he has that whole "suck it up" kind of mindset. That doesn't really apply to the general population though...but hey, its still good entertainment. I like it a whole lot more than "survivor man"...even though it is much more practical than bear.