There are mostly end-runs around regulations or taxes for small groups of people, so putting them into a small geographic area makes sense (at least for the fol

There are mostly end-runs around regulations or taxes for small groups of people, so putting them into a small geographic area makes sense (at least for the folks who will benefit). I'd also bet that in many cases, it's easier for a politican to carve out a small area and say "our usual laws don't apply in this city for X special reason" than it is for them to actually dismantle money laundry laws, kill revenue generating tax programs, end enivornmental regs or whatever at a national level.