Here's the price tag in Arizona for a 1.5 liter bottle of Gallo Pinot Grigio. The regular price is $9.99, but it is on sale for $6.99.
Here is the price tag for the same bottle in Pennsylvania:
That's not all - in Arizona, when you buy six bottles at a time you get a 10% discount!
So without a sale, in Pennsylvania the price is $11.49 and in Arizona the price is $9.99. With a sale and bulk discounts, it's actually a bigger disparity. Why such a difference? Wine is sold through free-markets in Arizona. But in Pennsylvania the wine stores have a monopoly. What's even worse is that it is a government-run monopoly, so there is not even a push for efficiency. A simple step would be for the Pennsylvania government to privatize the liquor industry.