For those of you following my reviews in California and not aware of Pennsylvania's bizarre liquor laws, they essentially say you can only buy it from state run stores in 24 packs, or from bars to take out in 6 packs.
And so, there are stores where you can only get beer (in 24 packs) and other stores where you can only get non beer liquor. However, some supermarkets do have bar/cafes where there's beer on tap (think of upscale beer bars in California) and you can get six packs, which is how we ended up here, although it has to be checked out separately from your groceries. The Whole Foods we went to in Wexford yesterday had something similar.
In any case the supermarket was packed with Thanksgiving shoppers. This Giant Eagle seems more upscale than others, competing for foodie tastes and against the Whole Foods nearby.
As for the beer? It's a pretty great selection - lots of East Coast stuff I've not seen before, as well as a lot of California and international stuff I have.
Just choose your time to visit.