With regards to the arcade not being mentioned on the website... It is fairly new. The owner hasn't really tried getting the word out until he had everything in place and had most of the collection up and running. But I'm going to be getting a tournament going there soon so I figured now would be a good time to start trying to get the word out about the location so the first tournament has a decent turn out.
As far as Quakertown Farmer's Market, last time I was there it was X-Files, Terminator 2, Nascar, and Rollercoaster Tycoon. I can swing by this weekend to verify if that has changed Condition for all are usually playable, but usually you'll find a few small issues.
For Earl Bowl Lanes, games are Spider-Man, Elvis, Ripley's, Batman Dark Knight, NBA Fastbreak, Lord of the Rings, Simpsons Pinball Party, Pirates of the Caribbean. Condition for those are also iffy. This location is a shame because it is a great lineup but there isn't an operator. The owner of the bowling alley owns the games and just doesn't care to fix them. I've emailed him a detailed list of issues and he said he would take a look. Months have gone by and they haven't been fixed so I stopped going back.