Out in the fresh air everyday, getting paid for a hard workout instead of paying big bucks to workout in a gym or health club.
There is not the lure of "fast food" at every bend of the trail. You stock the basics and make your own comfort foods. Chocolate bars, chips and pop are expensive treats to be used on special occasions.
There is lots of quiet time so that you can hear yourself think. You can relax enough to read a book. You can spend an hour watching Dollie Varden spawn. Or watch a Bull Moose pass you in the trees. You work hard because you are your own boss. Your time is your own. The nature things you see will stay with you forever.
Lots of people nowadays love to shop for that great bargain in the store. They just don't realize they are fulfilling the age old "hunter/gatherer" instinct. Out in the wilderness you get that free when you find that special mushroom, that huge bush of blueberries, that strange burl, see that little owl, hear that wolf pack, watch that moose. It is more rewarding, you don't need your Visa card. There are no bills each month for stuff you really don't need.
The only requirement is the need to be very self reliant and willing to do without at times. We are not on the grid except for satellite. Otherwise we rely on everything ourselves.