Eric Boehm has penned a longform piece for Reason about how Pennsylvania's liquor laws could finally be on the brink of modernization. It's well worth a read:
For decades, Pennsylvania has had some of the strangest rules about where, and how, you could buy alcohol.
I knew them well. Having grown up in Pennsylvania and returned there for a few years after college, I got used to explaining those rules—"I know, I know, it's crazy, but we have to stop here to get the beer, and then we have to drive across town to get the whiskey"—to out-of-staters who would come to visit. Every state has weird rules about liquor, but everyone could agree that Pennsylvania's were the worst.
Beer was only available from distributors and you couldn't get anything smaller than a full case (24 bottles or cans), unless you went to a bar that had a license to sell six-packs to-go and paid a hefty premium for the convenience. Wine and spirits were only available from one of the 600 or so state-owned-and-operated liquor stores. In rural parts of the state, that could mean driving half an hour or more out of the way, since the state stores are clustered in cities and suburbs.
That's changing. In fact, the changes have come so quickly that someone who moved out of the state as recently as 2013—as I did—can be stunned when returning home to visit friends and family. Now, I'm the confused out-of-stater who needs an explanation about where you can go to buy which products.
The whole thing can be found here: https://reason.com/archives/2017/05/03/in-pennsylvania-prohibition-is-finally-l/