You make an interesting point. As some states drive min wage to unsustainable levels, bordering state service businesses will prosper.
Due to laws and taxes in Illinois, the Indiana side of the Illinois border adjacent to Chicago is loaded with fireworks, liquor, tobacco, and motor fuel stores.
The problem being that prices on the Indiana side will rise to match Chicago prices as less taxes and regulation will mean more profits if an Indiana merchant raises his prices.
Same thing in Vermont/New Hampshire. On one side of the Connecticut River there are high taxes, and stringent regulations. On the other side is where all the businesses are. The people of Vermont voted for higher taxes and more regulation. Then they went shopping in New Hampshire.