There a few people I know who live off grid, they all say the same thing. The longer you are out there the closer to 100% you will be challenged for your stuff. Be it a semi-local crazy, warlord, gypsies or cult few have heard of - they all want resources that are closer than the alternative and they are aware that you are the only defense.
Another factor of this living is that once the honeymoon period wears off, there is a dawning on many people that their tolerance for failure has dropped significantly. A break down of a vehicle can become a very big issue very fast when the nearest town is an hour away.
