It's an old and obsolete notion, but the Frontier was a defining trait of the United States from its colonial days to, really, around the 1890s.
The frontier was always an option for people who wanted less government, and while the mild, untamed lands have a certain appeal to them, its really the absence of serious legal authority that tended to make the place work.
This was the Social Contract Theory at its finest - if you want less of the controls of government, you can go where there are less controls. This means that you're giving up the protections offered as well. Here is a system where the social contract is variable by region, and where it is possible to exist in the same nation without having to have "one size fits all" trade-off of protections gained and liberties lost.
Thats been for a hundred years before I was born, but it's an interesting notion.